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NAD and energy metabolism : Shown to increase intracellular NAD levels by up to 1.6-fold, supporting mitochondrial function and cellular energy production
Cons: Lower absorption rates, especially for those with digestive issues
Most people absorb enough natural B12 that they dont have to worry about additional supplements, but for those with poor nutrition, stomach problems or cancer, B12 can be hard for the body to process
Vitamin B12 primarily comes from animal-based products, which makes those who follow vegetarian and vegan diets more likely to develop vitamin deficiency
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