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Some classes of sheep have an increased demand for vitamin B12 which includes lambs, weaners and pregnant ewes

Medicare Part B will cover vitamin B12 shots when given at a doctors office or clinic, while Part A covers them in the hospital

Why Vitamin B12 Matters for Nerve Health Vitamin B12 (cobalamin) is an essential water-soluble vitamin required for: Myelin repair (protective coating around nerves) Neurotransmitter function DNA synthesis & cellular repair Red blood cell formation & oxygen delivery The body cannot manufacture B12 , and deficiency is common especially among older adults, vegans/vegetarians, people with absorption disorders, and those taking drugs like metformin

Therefore, total serum B12 may be high, but active B12 (holotranscobalamin) may be normal