How a B12 deficiency causes fatigue Your cells need B12 for proper function, and without the necessary amount, your red blood cell production decreases, which makes delivering oxygen to your cells more difficult
Similarly, tests for nutritional deficiency including multiple tests on vitamins and metabolites are not necessary
It is not on the banned substance list for most athletic organizations, but athletes should always verify before competition
For many adults, especially over 40, this anti-aging duo could offer sustainable support against the biological wear and tear that drives both visible and invisible signs of aging, such as skin changes, a slower metabolism, stubborn fat, brain fog, fatigue, and slower recovery