NAD+ is a coenzyme in every cell, vital for converting food to energy via mitochondria and ATP production
Much of what is sold online is labeled research only, and the purity of those products is highly variable, with independent testing repeatedly finding under-dosed, degraded, or mislabeled peptides across the unregulated market
The largest concern surrounding energy drinks is their caffeine content, and the potential for consumers to combine various energy drink sources (coffee, tea, soda, energy shots)
Thus the best-known "function" of B 12 (that which is involved with DNA synthesis, cell division, and anemia) is a facultative function that is mediated by B 12 -conservation of an active form of folate which is needed for efficient DNA production
Vitamin B12 is not produced by our body, it is obtained from food in our diet