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This process is thought to be the most common cause of low B 12 in the elderly, who often have some degree of achlorhydria without being formally low in intrinsic factor. [128] This process does not affect absorption of small amounts of B 12 in supplements such as multivitamins, since it is not bound to proteins, as is the B 12 in foods. [128]
[56] [57] Low levels of serum vitamin B 12 may be caused by other factors than B 12 deficiency, such as folate deficiency, pregnancy, oral contraceptive use, haptocorrin deficiency, and myeloma. [57] High serum levels may caused by supplementing with vitamin B 12, present of antibodies to intrinsic factor, or due to underlying condition. [56]
Low maternal vitamin B 12, defined as serum concentration less than 148 pmol/L, increases the risk of miscarriage, preterm birth and newborn low birth weight. [41] [39] During pregnancy the placenta concentrates B 12, so that newborn infants have a higher serum concentration than their mothers. [12]
Fortunately, though, vitamin B12 isn't so hard to get enough of because it's so widely dispersed in the food supply and daily needs are relatively low. 4 Overlooked Causes of Vitamin B12 ...
Vitamin B12 is a power nutrient. ... “Vitamin B12 requirements are low because we can store up to 2,500 micrograms in the liver,” says Ryan D. Andrews, R.D., C.S.C.S., principal nutritionist ...
Pernicious anaemia is a lifelong condition that affects nearly 5 in 100,000 people in the UK.
If there are other, reversible causes of low vitamin B 12 levels, the cause must be treated. [106] Vitamin B 12 deficiency anemia is usually easily treated by providing the necessary level of vitamin B 12 supplementation. [107] The injections are quick-acting, and symptoms usually go away within one to two weeks. [107]
Vitamin b12 deficiency can cause mood swings and tiredness. And no, you don't need to be a vegan to deal with this problem.
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