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A deficiency in this vitamin can lead to restless nights

It helps the nerves to function well, metabolize the cells, formation of red blood cells and enhances the production of DNA

The two major forms are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol)

When in doubt, ask your provider

Vitamin B12 is an essential nutrient involved in energy production, red blood cell formation, neurological function, and cognitive performance

In a 2017 bioavailability study, methylcobalamin supplementation (1,000 mcg/day) led to 13% higher liver retention and lower urinary loss compared to cyanocobalamin, translating to sustained energy in deficient adults