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The odds are good you are deficient in this "energy vitamin" discovered by natural doctors.

Vitamin B12 is known as the “energy vitamin,” and it is essential for many critical functions in your body, including energy production, supporting your immune system, and helping to regulate the formation of red blood cells.* Recent studies from the US Framingham trial show that one in four adults in the US are deficient in this vitally important nutrient and nearly half of the population has suboptimal blood levels.

Vitamin B12 is present only in animal sources of food--which is one of the reasons I advise against being a strict vegetarian or a vegan. This deficiency can result in less than optimal nervous system function, a tendency toward nervousness, and even less-than-optimal eye health.*

How You Get Vitamin B12 Deficient

The older you get the more likely you are to have a vitamin B12 deficiency. The two ways that you become deficient in vitamin B12 are from not getting enough in your diet and from losing the ability to absorb it.

I recently visited India which is primarily a vegetarian based culture and current studies there show about 80% of the adults are deficient in vitamin B12. However, vegans are not the only ones who can become vitamin B12 deficient.

The older you get the more your digestive system breaks down, especially if you have been following the standard American diet. Specifically the lining of your stomach gradually loses its ability to produce hydrochloric acid which releases vitamin B 12 from your food. The use of antacids or anti ulcer drugs will also lower your stomach acid secretion and decrease your ability to absorb vitamin B 12. Infection with Helicobactor pylori, a common contributor to stomach ulcers, can also result in vitamin B12 deficiency.

However the main cause of vitamin B 12 deficiency is a term researchers call food-cobalamin malabsorption syndrome. Cobalamin is the scientific term for vitamin B12. This typically results when your stomach lining loses its ability to produce intrinsic factor which is a protein that binds to vitamin B12 and allows your body to absorb it at the end of your small intestine.

Figure 1. Cobalamin (cbl) absorption and metabolic pathway. (A) Structure of cobalamin (vitamin B12) with a corrin ring bound to a central cobalt atom. (B) The metabolic journey of cbl from nutrient intake to its intestinal absorption. Endocytic receptors and proteins responsible for vitamin B12 intestinal absorption include cubilin (CUBN), amnionless (AMN), receptor-associated protein (RAP) and megalin (LRP-2). The membrane megalin/transcobalamin II (TCII) receptor complex allows the cellular uptake of cbl. Lysosomal-mediated degradation of TCII and subsequent release of free cbl is essential for vitamin B12 metabolic functions. MS: methonine synthase; THF: tetrahydrofolate; MTHFR: methyltetrahydrofolate reductase; MCM: methylmalonyl coA mutase.

Reply by Lev/Christopher on February 26, 2010 at 6:41am

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