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problems with b12 injections π£ Vitamin Deficiency β Vitamin B12 deficiency happens when the body does not have enough vitamin B12. β Vitamin B12 is important for making healthy red blood cells and keeping nerves Vitamin B12 deficiency causes and
Description
But using MMA levels to determine B12 status has its own complications
If B12 levels are already within a normal range, additional B12 may not lead to noticeable changes in energy or performance

Additionally, some who take Metformin experience vitamin B12 deficiency , though its important to note that B12 deficiency may not be directly caused by Metformin

doi: 10.2337/diabetes.50.2.376
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