According to the National Institutes of Health, methylcobalamin and cyanocobalamin are both effective. Cyanocobalamin is more stable and cost-effective.

Studies show that vitamin B12 is found almost exclusively in animal products. The Framingham Offspring Study found that 39% of the general population may have low B12 levels. For vegans, supplementation is crucial. What forms of B12 supplements work best? Cyanocobalamin vs Methylcobalamin?

Research from the European Journal of Clinical Nutrition suggests that fortified foods can be effective too, but supplementation is more reliable.

I take 2000mcg of methylcobalamin weekly. My blood tests show optimal levels now.