Vitamin B12 is vital for health. Deficiency can cause fatigue, nerve damage, and cognitive issues. Untreated, it leads to serious problems like heart strain and stroke. Older adults and vegetarians ...

Genomic testing analyses an individual's genetic data to provide insights into their nutritional needs, dietary preferences and potential health risks.

New research shows that even “normal” B12 levels might not be enough to protect brain health. Vitamin B12 is not a magic ...