Archive for the ‘Minerals & Vitamins for your health’ Category

Protein and Calcium in Osteoporosis (Part 2)

Wednesday, April 20th, 2011

prevent osteopporosis, osteoporosis diet

Continuing our osteoporosis story… Just to summarize, 2 days ago, in the first part, I explained why protein and minerals have to go together. You simply need to make sure you get adequate quantities of both if you want to have strong bones. Now, this is the basis on which we shall build the rest of our tower of knowledge :)

Another factor that affects the balance of minerals and protein in the bones is pH and this is where things with research get really messed up. Depending on the type of protein, animal or plant origin, there is a different effect on the pH of the body. Alkaline pH is the normal pH of the cells while in a healthy state, bones included. Alkalinity is supported by raw plant foods while animal protein, in big quantities, seems to induce a more acidic environment. Low pH (acid) is correlated with higher calcium loss from the bones and this is why studies that focus on the effect of different amounts of animal protein on the development of osteoporosis give such contradictory results. What makes things even more confusing when it comes to pH is that many of the foods we consume result in acidic pH; sugar, processed carbs, refined vegetable oils and starchy veggies (i.e. potatoes, fries etc), they are all acid forming (Hint: these “modern” foods are also responsible for most of the diseases we suffer from so it would be awesome if you could eliminate them J). So these facts make it a bit complicated to make up our minds about the actual effect of protein on bones. In any case protein intake must be a big part of your meals daily anyway (more than a gram per Kg of body weight) to support a lot more than strong bones but the point here is not to count on animal protein exclusively. It is necessary to consume good plant protein sources as well. Vegetarian diets must be carefully designed in order to provide the necessary protein and minerals amounts to maintain healthy bones.

Great plant protein sources:

  • Beans (soaked, check article on sprouts)
  • Nuts (always overnight soaked!)
  • Seeds (always overnight soaked!)
  • Green vegetables

Learn why your beans, nuts and seeds MUST be sprouted or at least soaked!

Learn how to sprout

A secret that very few medical professionals are aware of is the calcium intake regulation. The truth is that it doesn’t matter how much calcium you get. If your body isn’t metabolizing it properly, it won’t do your bones any good. To prevent or even reverse osteoporosis, you need to make sure your body regulates calcium properly. And the best way to do that is by getting more vitamin K2. Here is how it works:

Your bones are composed of mineral crystals and cells that are bound together by matrix proteins. The most important of these is osteocalcin, which regulates calcium. Vitamin K2 signals the osteocalcin proteins to go through a process called carboxylation. Once carboxylated, they can create new bone tissue. But if you’re not getting enough K2, your body won’t be able to undergo this process. And as a result, it can’t attach itself to the bone and create new bone tissue. Eventually, your bone becomes porous and weak… making it easier for your bones to break.

Great sources of K2

  • Egg yolks – from organic eggs laid by free range hens
  • Organ meats, especially liver – from grass fed, free range animals
  • Organic or even better Raw milk
  • Dark green leafs – kale, spinach, collard green, Brussels sprouts, broccoli
  • Traditionally fermented cheese, especially Swiss Emmental and Norwegian Jarlsberg

A super critical point in bone health is Vitamin D. I cannot stress enough how important it is to have your internal storage full of this amazing molecule and I don’t mean necessarily supplements. Your skin is more than able to produce for you all the vitamin D you will ever need, if you let it. As this is a big and very important subject, read the super comprehensive article on Vitamin D. Remember that D vitamin is fat soluble and if you choose to take a supplement you need to make sure you consume healthy fats with it such as coconut oil, raw olive oil, eggs etc.  Just to remind you that high levels of Vitamin D provide scientifically proven protection against cancer, cardiovascular disease, diabetes, autoimmune diseases and many more chronic debilitating diseases the western world is suffering from today; and all these on top of having healthy bones! Isn’t that a great deal or not??

Finally, the last factor that can surprisingly support strong bones is weight training. I am not suggesting to become a body builder now but research shows that strong muscles encourages strong bones. If you think about it, it kind of makes sense because muscles are attached to bones in order to make any movement happen; strong muscles have to go with strong bones hand by hand because one is supporting the other. By doing moderate weight training you give the signal to your body that it needs to strengthen your muscles and subsequently your bones; this induces a new balance in your body and all the protein and calcium available will be invested to increase bone density and create strong muscles.

The bottom line of the story is summarized in the following points:

  • Strong bones depend on both protein and minerals (calcium and magnesium) combined.
  • Eat both plant and animal proteins, not just meat.
  • Vitamin D is crucial – Let the sunshine do its work!
  • Vitamin K2 will make a massive difference in the calcium metabolism.
  • Moderate weight exercise will strengthen your bones.

     

    Protein and Calcium in Osteoporosis (Part 1)

    Monday, April 18th, 2011

     

    prevent osteoporosis

    Prevent or reverse osteoporosis with the right diet

    Osteoporosis is definitely one of the problems many women will encounter, especially during their old age. But this is a health issue that is related to the dietary habits of the youth years as well; it takes quite some time to establish a long term loss or retention of bone mass. The fact is that over 35 million women in the United States aged 50 and older have osteoporosis or are at risk for developing it. And that number is expected to increase to 41 million by 2020.The literature in the internet is simply confusing and frankly, most doctors will simply prescribe a calcium supplement and to drink more milk in cases of osteoporosis; it takes quite some time to integrate the advances of research into conventional medical practice. Calcium unfortunately is just one piece of the puzzle; research shows that calcium by itself only, cannot reverse or better the condition of the affected bones. On the other hand the protein factor is being studied for a few years now but scientists cannot really give a clear recommendation about the suggested protein intake. There are loads of contradictory and highly confusing studies out there which simply add up to the endless debate about osteoporosis.

    I guess that the most confusing bit here is the fact that high protein intake results in increased urinary calcium loss; this is something we know for at least 80 years. This is one of the vegetarian’s main argument against animal protein but it is not entirely true; there are many studies that clearly demonstrate that low protein intake has a detrimental effect on the bones. So, what’s going on here? Is protein good or not? Calcium? Should we take it or not? Before I explain everything to you need to remember two different things. First, the body’s available calcium is found in the bones plus the amounts absorbed in the gut and the kidneys. This amount of calcium is what our bodies have to work with to cover all the calcium / minerals needs.  Secondly, the body uses the combined input from the above sources to prevent or trigger an increase in the calcium excreted through the urine; if there is calcium in excess, it will be flushed out. This is called homeostasis, meaning that the body will try to keep the internal balance as it is.

    Let’s start from the basics now. Bones are made of protein and minerals, about 50% each. Therefore it makes sense that both are necessary to retain healthy bone mass; they act synergistically to hold the bone tissue together. Second, the bones are in a constant dynamic equilibrium, meaning that the minerals are on the move depending on several factors: pH, protein and minerals intake, internal needs of the body. For example in the case of fracture, minerals will be mobilized from any possible place (bone) – if dietary intake is insufficient to cover the urgent need- in order to heal the broken bones. Another example is pregnancy; most of you know that expectant mothers have to be ultra careful with their teeth because if the mother does not take enough minerals to cover the baby’s needs, calcium from her teeth will be absorbed. This is why it is very common pregnant women to take a calcium supplement and also the reason why they would suffer horrible teeth infections and losses before modern dentistry was able to help them. As long as adequate dietary protein and minerals intake is available, strong bones are guaranteed. Protein or minerals ( mainly calcium) alone cannot support bone mass; in my opinion this is why most publications about the role of protein and/or calcium are so contradictory, you cannot just study separately the two factors that act synergistically for healthy bones. Research shows that the increased calcium loss when protein intake is high does not mean necessarily that this calcium is extracted from the bones; in fact, high dietary protein increases the calcium absorption from the gut. In this case the extra calcium found in the urine is simply a result of too much calcium coming in the body, hence a part of it will end up in the urine.  On the other hand, if you take a lot of minerals but not enough protein, again the body cannot do much with it; the body will use as much of the calcium as it can, given the available protein but the condition of the bones will not get significantly better.

     

     

    Methylation cycle and B vitamins

    Tuesday, April 12th, 2011

    Some of you know already that specific B vitamins (B6, B12 and folate) are involved in the metabolism of homocysteine and that deficiency in these vital vitamins leads to atherosclerosis and cardiovascular disease. We rectified the misunderstanding about cholesterol causing the above conditions and showed how important biological molecule it is; at the end of the day it is not the causing agent of heart disease but a healing substance the body needs dearly. The blessings with B vitamins do not end with atherosclerosis though. Surely it shows how critical these vitamins are for the body but this is just one aspect of the multi functionality of the three angels. Many debilitating syndromes have been associated with deficiencies in B6, B12 and folate; more than you can imagine and completely varied. This is because they are involved in a group of omnipresent and super essential biochemical reactions that are known collectively as methylation process. Our 3 B vitamins act as co-factors in these reactions; in their absence the system does not work efficiently or not at all, depends on the level of deficiency we are talking about.

    But what is methylation anyway? Without going into much technical detail I will give a simplified explanation. When a molecule is methylated, this means that a methyl group is added to it; a methyl group is a tiny extra molecule itself, imagine it a small tail that it is attached to a ball (the bigger molecule) when methylation occurs. The new chemical structure gives new properties to our big molecule which is now methylated. Usually methylation results in activating the original molecule. So, if we have a big molecule A for example and it is totally inactive by itself, then a little methyl group will transform it into its active version. Methylated A is now ready to fulfill its biochemical destiny in our body. When its mission is over, the methyl group will be removed from the molecule A and it will return into its inactive state until its services are needed again.

     

     

    All these reactions (i.e. adding a methyl group to a molecule or removing it) happen in the human body with the help of enzymes, so in order for all the methylation to take place in time the enzymes must be fully functional and ready to perform their task. This is where the B vitamins come; they help the enzymes stay functional. The good thing with enzymes is that they only help the reactions happen, they do not really get involved in the reaction itself, so their quantities are not diminished or altered in any way; in fact they are regenerated after every cycle. The only thing they need is their helpers, the B vitamins, to keep them fit and ready to facilitate another cycle of biochemical reactions.

    Well, this is the mystery of methylation, it doesn’t sound that exotic when you understand what it really isJ. It is very simple indeed; don’t let peculiar chemistry names confuse you.  The juice of the methylation is that this simple reaction has been found to activate all sorts of very important molecules in the human body. In fact methylation has been found to regulate gene expression, DNA repair, detoxification (remember the detoxification of homocysteine for atherosclerosis???), regulation of protein function, hormone release and so many more; the list is very long… People of all ages and backgrounds need to have their methylation system in prime condition; it is fundamental for our biology.  The only way to ensure that is by having your B6, B12 and folate vitamins storage super charged constantly. Research in China has shown that expectant mothers that did not include enough B vitamins in their diets (especially during the first trimester of the pregnancy) gave particularly often birth to babies with a birth defect called spina bifida or myelomeningocele. This can only prove to you how important B vitamins are and how essential biochemical systems in the body will consistently fail if these vitamins are not present in the required quantities.

    As this is the first part of this topic I will close this post by insisting on the fact that our diet plays a massive role in the shape, health levels and fitness of our bodies. Food is powerful information for your cells and DNA , not just calories. Even in cases with people being genetically predisposed to certain conditions, diet will be the determining factor of whether the condition will manifest or not. B vitamins are just an example of just how basic these processes are.

     

     

     

     

    Charcoal Miracle

    Saturday, October 9th, 2010

    I have been reading a lot about medicinal charcoal lately and I must say I am simply amazed at this little forgotten miracle. It seems that activated charcoal acts as a powerful absorbent of toxins and poisons. Science cannot properly explain this ability so far; in a way it remains a mystery of nature, but the results are nothing less than extraordinary. What scientists believe is that the charcoal particles have a particularly complex surface comprising of a network of crevices, tunnels and cracks that increase impressively the total surface of each grain; a 1 cm cube unfolds to a thousand square meters! It is believed that this structural characteristic of charcoal is what gives it the ability to absorb toxins and poisons; molecules like that get trapped and are held in the mysterious network on the surface of charcoal grains by electrostatic forces, capillary action and probably more types of unknown interactions. It is considered completely safe though and all hospitals use it for acute cases of poisoning of any kind; it is even given to pregnant women! It can be used both externally and internally. It is truly a universal first aid available for all of us.

    But what is charcoal anyway? Definitely not a drug or mineral; minerals are inorganic. In some cases it is listed as food supplement but this is totally wrong since it is completely inert and indigestible, at least by humans. In a sense, charcoal is a class of its own as there are other substances or compounds to classify it with. Basically, when wood burns, there is often not enough oxygen to allow for complete combustion. Water evaporates and the carbon of the wood is converted to the black charcoal material left after a camp fire is over. Medicinal charcoal, is converted to fine powder first and then undergoes one extra step of activation, where it is subjected to steam or air at high temperatures. This increases its ability to absorb toxins and poisons. This activation protocol erodes the surface of the grains even more thus creating an even more complex superficial landscape, hence the enhanced ability to absorb bad stuff!

    For treating external infections or wounds you basically mix 1-2 tablespoons of charcoal powder with the necessary amount of water to make a paste. Spread this paste on a piece of cloth, place and fix (with plasters etc) on the affected area. A thin plastic film will lock in the moisture and speed up the process. If you refresh with a new quantity of charcoal paste every 6-8 hours, you can ensure the best possible results.

    When it comes to internal uses, most people take charcoal for different kinds of digestive disorders like upset stomach or diarrhea. Certainly charcoal can act super fast to relieve the above or related conditions since it naturally absorbs gases and toxins. The truth is that charcoal can be used for hundreds of poisons like arsenic, mercury, pesticides, strychnine, warfarin etc. It is also effectively used for detoxification in drugs overdose cases (barbiturates, Prozac, aspirin, cocaine, morphine, opium, paracetamol etc). Activated charcoal is recommended by the Poison Control of America, including the Animal Poison Control Center. As mentioned above, activated charcoal is used in hospitals and clinics around the world mainly for the poisoning and drug overdose cases but it is also widely used in hemoperfusion cartridges, kidney and liver dialysis units, breast cancer surgery, wound dressings and indeed many cases, to ensure a toxin free environment.

    The magnificence of charcoal does not stop in human or animal body though. Activated charcoal products are efficiently used to clean the air from bad odors, purify water, deodorize garbage containers and pet areas; it is like a magical substance which is able to absorb all the bad stuff out there, solid or gases, no matter where they are. ..

    There are 2 books I really want to recommend about charcoal

    1. Charcoal Remedies. com, the complete Handbook of Medicinal Charcoal and its Applications by John Dinsley
    2. Activated Charcoal: Antidote, Remedy and First aid by David O. Cooney

      Selenium: a magical mineral and super medicine

      Friday, July 23rd, 2010

      Well, selenium is without a doubt a very important trace element that most people simply ignore. It has been found to be a powerful antioxidant with significant anti-cancer and antiviral properties. It dramatically lowers the risk for many types of cancer like prostate, lung and colon cancer. It really looks like it prevents damaged DNA from duplicating thus it stops the cancer at the earliest possible stage; it blocks the development of tumors.  Selenium binds with the amino acid called cysteine (and forms selenocysteine) in the body and subsequently is incorporated in proteins – the so called selenoproteins.  These proteins are very important because they are recruited upon infection or any situation that can potentially cause biochemical and oxidative shock / imbalance in our body.  High selenium levels have been consistently been correlated with low incident of Hepatitis B and C as well as infections of virus Coxsackie B3, all very common and potentially dangerous viral infections.

      Also, selenocysteine is one of the three amino acids that form the tripeptide glutathione peroxidase (the other two being glutamine and tryptophan). Glutathione is one of the most powerful antioxidants our body produces and is commonly used as a reliable marker for our capability to handle oxidative stress. Glutathione can suppress, on the molecular level, the activity of enzymes that viruses use to replicate and infect an organism.  One of the first things a virus does the moment it enters a body is to inactivate the defenses this body has to block its replication. This astounding finding has been demonstrated in the case of HIV /AIDS patients. HIV infection is monitored by watching over the levels of selenium and CD4 cells (specialized cells of the immune system); as the disease advances, these two go down. Both selenium and CD4 are successfully used as independent predictors of mortality.  According to professor Dr Harold Foster (University of Victoria in Canada) HIV first depresses the levels of selenium, which then triggers a fall in the CD4 levels too; the ability of the immune system to defend the body from the infection is severely compromised. The same doctor treats patients in Africa using a dietary supplementation method consisting of high doses of four nutrients: selenium, cysteine, tryptophan and glutamine. In this way it provides all the necessary raw materials for the body to produce its own glutathione. Miraculously, symptoms of AIDS dissolve, as a result of this regime and even patients in advanced stages are able to resume their everyday lives within a month. I don’t know about you but I think that this is great news for a disease that is considered to be lethal and irreversible. Apparently it is not strange that Senegal displays the lowest AIDS rates in comparison to any other country in Africa. The reason is that Senegal has soil really rich in selenium, so the people there naturally get massive amounts of this valuable trace element just by feeding with locally grown fruits and vegetables.

      So, how can we get more selenium?? Certain foods are naturally rich in this element.

      Food Micrograms (μg)
      Brazil nuts (1 ounce) 544
      Tuna (3 ounces) 63
      Beef cooked (3 ½ ounces) 35
      Cod cooked (3 ounces) 32
      Turkey  roasted(3 ½ ounces) 32
      Chicken breast roasted (3 ½ ounces) 20
      Egg whole(1 medium) 14
      2% Low fat Cottage Cheese (1/2 cup) 12
      Oatmeal cooked (1 cup) 12
      Brown Rice cooked (1/2 cup) 10
      Walnuts (1 ounce) 5

      The optimal daily intake of selenium is 50 – 200 micrograms (μg) and that is if you are not deficient in it. There are also selenium supplements if you find it hard for any dietary reason to take in enough of it.

      Essential online reading

        Magnesium

        Wednesday, July 14th, 2010

        Magnesium is considered to be the “relaxation mineral” and in fact it is. Lack of magnesium can cause stiffness, irritation and tension in many levels and parts of the body, even the mood! The truth is that this mineral is involved in more than 300 reactions and metabolic pathways in the human body; 3,500 medical references on it prove that. It is mainly stored in bones, brain and muscles. The bones need it to be strong and resist fractures, muscles need it to relax and be able to contract normally. On a cellular level magnesium is important for membrane stability and in the mitochondria to allow for energy productions for our body’s functions.  Magnesium is one of the most potent drugs used in the emergency room for heart failure and seizures. It is so important and has such an impressive healing power that even pregnant women can be treated with it without any risks imposed on them or the baby. It is no surprise that magnesium deficiency is associated with such a long list of symptoms; the following just highlighting the most severe ones.

        • Insomnia
        • Anxiety
        • Muscle cramps
        • Menstrual cramps & Pre Menstrual Syndrome (PMS)
        • Osteoporosis
        • Irritable Bowel Syndrome (IBS)
        • Diabetes
        • Obesity
        • Migraines & headaches
        • Constipation
        • Asthma
        • Palpitations

        Our modern diet is deficient in magnesium because during processing and refining, foods lose the best part of their magnesium (as well as other minerals and vitamins) content. White flour, past, pizza, processed meats (salami, ham etc) and commercial beverages / drinks all are deprived of magnesium. Also, excessive amounts of alcohol, coffee, sodas, sugar, salt, smoking and stress result in significant loss of magnesium in the urine. Another factor that affects magnesium intake is its absorption; this mineral cannot be properly absorbed unless adequate amounts of vitamins B6 and D, as well as the mineral selenium are present.

        Foods that are naturally rich in magnesium are the following

        • Seaweed
        • Nuts: almonds, cashews, brazil nuts, walnuts, pecans
        • Grains: millet, rye, brown rice, barley, wheat bran
        • Fruit: figs, dates
        • Vegetables: avocados, collard greens, parsley, dandelion greens, garlic
        • Beans

        To prevent your body from losing excessive amount of magnesium it is wise to limit or eliminate colas, alcohol, sugary or salty foods and relax your mind. Make sure you take in your B vitamins (especially B6), D vitamin and selenium to maximize absorption.

        For supplementation, the average dose is 400 to 1,000 mg per day. The most absorbable forms of magnesium are the following: magnesium citrate, glycinate, taurate, aspartate, malate, fumarate and succinate. Certain forms of magnesium though are NOT absorbable by the human body and these are: magnesium carbonate, sulfate, glyconate and oxide; you will find these in some supplements as they are the cheapest source of magnesium for the non – responsible providers/manufacturers.

        Epsom salts are basically magnesium salts. A hot bath with Epsom salts will give your body the opportunity to absorb a great amount of magnesium.

        If you take too much magnesium, the main symptom is diarrhea. Eliminate supplementations for a few days until your gut is balanced again and start over with half the original dose.

        People with kidneys disease and / or severe heart disease must supplement on magnesium only UNDER MEDICAL SUPERVISION

         

        Vitamin D and Parkinson’s disease

        Saturday, July 10th, 2010

        Vitamin D is a super amazing medicine and hormone that our skin produces upon exposure to sunlight. My main post on this miraculous molecule provides a wealth of info about it, the doses needed and the magnificent health benefit one can have. To sum it up vitamin D dramatically reduces risk of cancer and heart disease to the point that no medication can possibly claim to do so and with no side effects at all! It is pretty awesome what it can do for us indeed.

        More research highlighted even further the healing properties of vitamin D. it has been found to reduce by up to 65% the risk for Parkinson’s disease. This disease affects the brain and muscle control. It messes with nerve cells that produce dopamine.

        Dopamine is like a messenger molecule that lets different parts of your body know how and when to move. When you don’t produce enough dopamine many parts of your body will naturally lose coordination. This causes the tremors and spasms associated with Parkinson’s disease.

        The fact that vitamin D has such a dramatic effect on Parkinson’s is no surprise because the part of the brain most affected by this disease is full of Vitamin D Receptors (VDR). Also vitamin D has been shown to prevent loss of the cells that produce dopamine, thus protecting from Parkinson’s before it even manifests.

        So, go ahead and expose yourself to the valuable sunshine! 10 mins will give you about 10,000 units of vitamin D and that’s all you need. If you can’t get enough sunlight, consider supplementing or eat vitamin D rich foods. My post “Vitamin D, the Guardian Angel of our body” gives you all the info you will ever need for staying vitamin D healthy.

        References

        1 Yoshihiro Sato, MD, Munetsugu Kikuyama, PhD and Kotaro Oizumi, MD. High prevalence of vitamin D deficiency and reduced bone mass in Parkinson’s disease. American Academy of Neurology. 1997;49:1273-1278.
        2 Paul Knekt, DPH; Annamari Kilkkinen, PhD; Harri Rissanen, MSc; Jukka Marniemi, PhD; Katri Sääksjärvi, MSc; Markku Heliövaara, PhD, Serum Vitamin D and the Risk of Parkinson Disease. Archives of Neurology, 2010;67(7):808-811.
        3 Paul Knekt, DPH; Annamari Kilkkinen, PhD; Harri Rissanen, MSc; Jukka Marniemi, PhD; Katri Sääksjärvi, MSc; Markku Heliövaara, PhD, Serum Vitamin D and the Risk of Parkinson Disease. Archives of Neurology, 2010;67(7):808-811.

        Iodine

        Saturday, June 26th, 2010

        A very essential and sometimes neglected mineral it is. We need only very small quantities, a teaspoon in total during a lifetime, but its deficiency can cause devastating effects. Almost 2 million people in the world don’t get enough and more than 50 millions have brain damage cause by iodine deficiency. 36.5% of children in school age are deficient too.

        Our thyroid needs iodine to retain a balanced function, thus a healthy metabolic rate and weight.  Lack of iodine can cause you to feel sluggish and fatigue, store fat very easily and get depressed. Women store big amounts of iodine in their breast and ovarian tissues. When deficient, both breasts and ovaries develop cysts (fibrocystic breast and polycystic ovarian disease respectively). 20% of the iodine we have is stored in the skin. Dry skin is a result of not enough iodine and the same goes for the eyes and mouth, they become dry as the tear and salivary glands cannot function properly. Even a small deficiency of iodine can lower an adult’s I.Q. by 15 points, which is quite impressive. Children are more vulnerable unfortunately and can suffer far worse and irreversible consequences.

        How can we top up with iodine then? That’s super easy because we can take it with many natural foods. Most likely you will not even have to consider supplementing with iodine unless you entirely hate the whole list of foods that contain it (rather difficult I must say though). We only need miniscule quantities of this valuable mineral every day, about 12.5 to 50 micrograms. The following table gives you your best options. In general you need to remember that sea produce, like sea weed and fish, is naturally loaded with iodine so do incorporate as much of sea creatures in your everyday diet!

        Food Serving Micrograms of Iodine
        Seaweed ¼ ounce, dried More than 4,500
        Cod 3 ounces 99
        Iodized Salt 1 gram 77
        Potato with peel, baked 1 medium 60
        Cow’s milk 1 cup 56
        Shrimp 3 ounces 35
        Fish sticks 2 fish sticks 35
        Turkey breast, baked 3 ounces 34
        Navy beans, cooked ½ cup 32

        Vitamin D – The Guardian Angel of our body

        Saturday, June 5th, 2010

        Vitamin D is one of the most important vitamins you need for your health. Current research shows that it reduces the risk for heart disease and cancer.  At the moment there is no drug delivering such impressive results.  Also, it significantly lowers the risk for Diabetes type I and II and autoimmune diseases like MS and rheumatoid arthritis.

        Yet, vitamin D deficiency is extremely common and this is not necessarily associated with countries that due to their geographical location do not benefit from sufficient sun exposure. Of course this is a factor to be considered and indeed research shows that people from southern countries have higher blood levels of vitamin D, but his is not the case always. An impressive 9% (7.6 million) of children in USA were deficient in vitamin D and 61% (50.8 millions) had insufficient levels of it in their blood. A combination of factors is responsible for this. Vitamin D can be synthesized in our skin when we are exposed to sunlight.  The overuse of sun creams with very high protection factors blocks 97% of vitamin’s D production. This is one of the major reasons for the vitamin D deficiency epidemic today. Certainly I do not suggest for you to spend the whole day unprotected under the sun. The sun exposure that makes our skin a bit red (15 mins per day) produces the equivalent of 10,000 to 25,000 IU of vitamin D. That’s all you need really. Also, the consumption of foods rich in vitamin D is not enough to compensate for this loss. Vitamin D is found in foods rich in fats like salmon, herring, eggs, whole milk etc, some of which are associated with weight gain, obesity and heart disease. In order for vitamin D to be absorbed in the gut it is imperative for some kind of fat to be present, it cannot be taken in the gut cells otherwise. At the moment fat is like a devil’s thing for most dieticians and nutritional advice rarely points out how important it is to incorporate certain types of very healthy and absolutely necessary fats in our diets. The official guidelines for the supplementation with vitamin D suggests very low doses of this vitamin to be taken, a notion that mostly reflects beliefs of another era. Given the fact that a large part of the population is deficient, it takes a lot higher doses to fill up the vitamin D tank in our bodies (which can take up to 6 months) or even maintain high levels of it in our blood. Also, the ability of the skin to make vitamin D is reduced as we age. The average 70 years old person can only produce 25% of the vitamin that a 20 year old does. In this case diet and maybe supplementation are to be handled very carefully in order to ensure sufficient levels of vitamin D in the body. Finally the color of the skin can play an important role in the production of vitamin D. Darker skin produces a lot less vitamin D than lighter one.

        So what exactly does vitamin D in our bodies? Most people know that vitamin D helps prevent rickets. This is certainly true since it is proved that vitamin D increases the amount of dietary calcium absorbed by the intestine and also directly promotes bone health and development. Only 10-15% of the calcium in our food can be absorbed in the gut when vitamin D is not present.  It is recommended as a treatment for osteoporosis. Lately though vitamin D has been shown to inhibit the growth of cancerous cells. It regulates cellular growth and cell differentiation; both are functions that are out of control when a normal cell is converted to cancerous. Research showed that risk for various types of cancer was reduced by 77% in groups of people taking sufficient amounts of the vitamin.  Vitamin D is so important that cells have a special receptor in their external membrane just for this molecule. It is called VDR (Vitamin D Receptor) and it has been found that abnormal VDR genes are correlated with breast cancer too.  When vitamin D connects with its cellular receptor it can directly send signals to the interior of the cell and most importantly to the nucleus, where the DNA resides. In this way, vitamin D triggers genetic and biochemical responses. Finally it has been found that sufficient vitamin D levels have a cardio-protective role. Risk for heart disease was reduced by 43% in individuals taking high doses of this vitamin. In fact many autoimmune diseases, as well as diabetes, respond very well to vitamin D. one study found that supplementing with vitamin D reduced the risk of diabetes type I by 80%, while in another study the risk for multiple sclerosis (MS) was similarly reduced by 40%.  It is a molecule that it is involved in many biochemical pathways in our bodies and our genetic makeup is finely tuned with it. It is absolutely necessary to make sure we receive proper amounts of vitamin D.

        You can have a blood test to check whether you are deficient in vitamin D. The test measures the levels of 25 OH vitamin D, which is the form of vitamin D circulating in the blood. The conventional levels that are considered “normal” are 25 to 137 nmol/L or 10 to 55 ng/ml. This may be enough to prevent rickets but not for optimal health. Your vitamin D blood levels should be 100 to 160 nmol/L or 40 to 65 ng/ml if you are after real health. Based on these results and guidelines you can regulate your dietary and sunbathing needs.

        For sure, the safest and best way to get vitamin D is through sun exposure. You only need 10-15 mins per day to produce enough vitamin D for the entire day. If you live in a country with minimal sun exposure you will need to introduce foods rich in vitamin D and possibly consider supplementing as well. At the moment, it is recommended that we take 200 – 600 IU per day with an upper limit of 2000 IU. This is simply not enough, especially if you are deficient in this vitamin. If you are deficient you need to take at 5000 – 10000 IU of vitamin D per day at least for 3 months. The vitamin D levels must be monitored to check the levels in the blood. It could take p to 6 to 10 months to fill up your vitamin D storage. When you reach a decent level of vitamin D in your blood you can reduce your dose to 2000 – 4000 IU per day; this is your maintenance levels and they will keep you at optimal health easily.  You must take the right vitamin D though. The ONLY biologically active form of vitamin D is D3 (cholecalciferol). Many supplements contain D2 (ergocalciferol), which is not active in humans, therefore completely useless. If you come across vitamin D analogues stay away. They are synthetic forms of vitamin D, surely more expensive and cannot possibly be compared with the natural D3 vitamin.  Excellent vitamin D dietary sources are the following:

        Fish liver oils, such as cod liver oil. 1 TBSP (15 ml) = 1,360 IU of vitamin D

        • Cooked wild salmon. 3.5 oz = 360 IU of vitamin D

        • Cooked mackerel. 3.5 oz = 345 IU of vitamin D

        • Sardines, canned in oil, drained. 1.75 oz = 250 IU of vitamin D

        • One whole egg = 20 IU of vitamin D

        Try to include as many of them in your daily meals.

         

        Natural Vitamins

        Monday, April 19th, 2010
        healthy vitamins

        Make sure your vitamins are efficient and good for you

        I am a great believer of vitamin and mineral supplements. That’s why I am writing so many articles about different nutritional supplements and vitamins! The crucial point is first of all to take what we actually need and second the quality of whatever we put in our bodies. Having said that, I wanted for some time now to say a few things about the different qualities you can find when you buy your vitamins and what you should pay attention to.

        Many people take vitamin supplements but surprisingly when they are tested for the levels of vitamins in their blood they come up as deficient! Although it seems as a paradox, indeed there is a very good explanation for this. If you read the article about Vitamin D for example, you should remember that there are 2 forms of the vitamin that can be found in the supplements: D2 and D3. D2 is minimally absorbed from the body and therefore even if you take your tablets religiously, the level of vitamin D will be way below optimal and if you don’t take extra vitamin D from other sources (sun, food etc) you will most probably be deficient. You see, D2 a cheap alternative to the biologically active and highly absorbable D3 of the vitamin and many manufacturers prefer the cheap version instead of the correct one.

        Apparently this does not go for just Vitamin D but for most vitamin and minerals really. The major vitamin makers buy the cheapest ingredients on the international market, usually synthetic versions of the vitamins they list on the label. The problem is that the body does not recognize and eventually absorb these vitamins so they are eliminated.

        It is very important to read the labels of the vitamins and supplements you buy and wherever possible prefer natural vitamins, meaning that they are from a source that occurs in nature. This is important for you because you are designed to get your vitamins and other nutrients from food. Vitamins from natural sources will have with them all the trace minerals, enzymes, and co-factors that make them work so well in nature. Vitamins constructed in the lab have none of these. They’re stripped-down copies… isolated chemical forms of the real thing.

        So basically what you need to pay attention to are the following two things, according to Dr Sears:

        1. Well-made, natural vitamins leave out things like sugar, yeast, salt, gluten and artificial colors and preservatives. Remember though, that vitamins do need some kind of filler to physically keep the pill from falling apart. That means there will often be some kind of cellulose or stearate in them. But don’t worry, they’re harmless.

        2.Look for the letters d and l.

        From a chemical point of view, you can easily tell the difference between synthetic and natural forms of vitamins when you shine a simple beam of polarized light on them.

        A natural vitamin will always bend all the light to the right because of the way the molecules spin together in nature. The Latin word for right is “dextro,” so you’ll often see a lower case “d” in front of the vitamin name if it’s natural.

        But if you send that same beam of light through a synthetic vitamin, it will bend both ways. Half to the right, and half to the left. The Latin for left is “levo.” Put that together with “dextro” and you have the “dl” you often see on labels at the beginning of a synthetic vitamin’s name.

        The best example is vitamin E. There’s plenty of evidence your body uses the natural form – d-alpha tocopherol – much better than the synthetic dl-alpha tocopherol.

        Like the study done last year which found that the natural form had significantly higher antioxidant effect. Also in an animal study, the natural form was absorbed much better. The animals were given more than twice as much synthetic vitamin E and still didn’t have the same serum levels as the ones given the natural form.

        A synthetic vitamin is sort of like a reflection in a still pool of water… it looks like the real thing, but it’s far from it.

        References

        1 Colombo ML. “An update on vitamin E, tocopherol and tocotrienol-perspectives.” Molecules, Mar 2010;15(4):2103-13.
        2 H. Yang et. al. “Effect of vitamin E source, natural versus synthetic.” J. Anim Sci. 2009. 87:4057-4063.

        Artículo en español