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Olasupo Odunsi, MD, Medical Director Reviewed July 5, 2026 If you're constantly tired and your metabolism feels stuck, low B12 could be part of the problem
It may also lead to nerve problems such as numbness and tingling in the hands and feet
The usual daily recommended amounts of methylcobalamin, vitamin B12 either through dietary intake or supplementation should be taken during pregnancy (see Dosage)
Bad kidney function can cause too much B12 to build up, leading to problems
4,031.72 g/mol Purity 98% CAS No
US$ 23.09
US$ 25.64
US$ 20.79
US$ 25.98
US$ 29.57
US$ 27.71
US$ 22.38
US$ 20.84
