This vitamin is involved in forming DNA and red blood cells, as well as necessary for brain function, heart health, energy production, and more ( Its found naturally in many animal products and sometimes added to fortified foods ( Vegans, vegetarians, older adults, and people with digestive issues that can interfere with nutrient absorption may be at a higher risk of vitamin B12 deficiency and need to supplement ( summary Vitamin B12 is a water-soluble vitamin involved in several aspects of health, including DNA synthesis, red blood cell formation, and brain function
Evidence-Based Strategy for Sustainable Success Medical weight loss is not about willpower
Research suggests that B12 supplementation may protect against nerve damage by improving nerve regeneration and function
Shorter cycles (4-6 weeks) are sometimes used for cutting phases or competition preparation, while longer cycles (12-16 weeks) suit individuals with significant fat loss goals
PLoS ONE 5 , e8547 (2010)