Vitamin B12 is crucial for blood cell formation, nerve health, and DNA synthesis. Deficiency can cause fatigue, weakness, and neurological issues. Rich sources include animal products, fortified plant-based foods, and supplements. Proper absorption requires good stomach acid levels, key nutrient pairings (calcium, folate, B6), and a healthy gut. Excess alcohol and long-term antacid use can hinder absorption. Those at risk, such as vegans and older adults, may need B12 supplements or injections for optimal health.Read More
How to get enough vitamin B12: Food and lifestyle tips
