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In countries where B 12 deficiency is common, it is generally assumed that there is a greater risk of developing anemia. However, the overall contribution of vitamin B 12 deficiency to the global incidence of anemia may not be significant, except in elderly individuals, vegetarians , cases of malabsorption and some genetic disorders. [ 86 ]
The diets of vegetarians and vegans may not provide sufficient B 12 unless a dietary supplement is taken. [2] A deficiency may be characterized by limb neuropathy or a blood disorder called pernicious anemia, a type of anemia in which red blood cells become abnormally large. [2]
Deficiency isn't common, but can produce some scary side effects when it does happen. Lack of vitamin B12 can cause megaloblastic anemia —a condition characterized by larger than normal red ...
There are concerns about the bioavailability of iron from plant foods, assumed by some researchers to be 5–15 percent compared to 18 percent from a non-vegetarian diet. [111] Iron-deficiency anemia is found as often in non-vegetarians as in vegetarians. Vegetarians' iron stores are lower.
Vitamin D deficiency was the most common deficiency, with a prevalence of over 60% among people with type 2 diabetes. ... vitamin B12 deficiency was present in almost 29% of participants.
A variety of vegetarian, and more specifically vegan, foods. Vegetarian nutrition is the set of health-related challenges and advantages of vegetarian diets.. Appropriately planned vegetarian diets are healthful and nutritionally adequate for all stages of the human life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence. [1]
Supplements are available in many different formations, including tablets, lozenges, gummies and liquids. While the natural form of B12 found in food is called methylcobalamin, the synthetic type ...
Pernicious anemia is the most common cause of clinically evident vitamin B 12 deficiency worldwide. [14] Pernicious anemia due to autoimmune problems occurs in about one per 1000 people in the US. Among those over the age of 60, about 2% have the condition. [8] It more commonly affects people of northern European descent. [2]