NutritionFacts.org - Regardless of whether or not we eat meat, our ability to absorb vitamin B12 may decline as we age. For those 65 and older, a daily dose of 1,000 mcg
![Daily multi-B vitamin doses in the case-control study of the pellagra... | Download Scientific Diagram Daily multi-B vitamin doses in the case-control study of the pellagra... | Download Scientific Diagram](https://www.researchgate.net/publication/347185995/figure/tbl1/AS:983849525866497@1611579414723/Daily-multi-B-vitamin-doses-in-the-case-control-study-of-the-pellagra-and-isoniazid-in.png)
Daily multi-B vitamin doses in the case-control study of the pellagra... | Download Scientific Diagram
![Amazon.com: Nature's Bounty Vitamin B12 1000mcg, Supports Energy Metabolism and Nervous System Health, Vitamin Supplement, 100 Tablets : Health & Household Amazon.com: Nature's Bounty Vitamin B12 1000mcg, Supports Energy Metabolism and Nervous System Health, Vitamin Supplement, 100 Tablets : Health & Household](https://m.media-amazon.com/images/I/71aiKF+G-bL.jpg)