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It also influences gene expression patterns that control whether cells store or burn fat
Vitamin B12 injections alone are not medically proven to help with weight loss
As we age, stomach acid production can decline (atrophic gastritis), which makes it harder to extract B12 from food or pills
It is widely used as a research probe for adipose-tissue lipolysis and metabolic regulation
As you get older, the systems that rely on NAD+ (like energy production, cognitive function, skin repair, immune health, and inflammation regulation) start to slow down, and declining NAD+ levels appear to be a key driver behind that slowdown
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