CoQ10 also functions as a potent antioxidant, protecting cells from oxidative damage caused by free radicals
In rarer cases, vitamin B12 can cause more serious side effects such as an irregular heartbeat or heart palpitations, hives, and anaphylaxis
[9] Its also prudent to be cautious or avoid NAD+ injections if you have a serious uncontrolled medical condition (for example, end-stage liver or kidney disease or severe heart disease), unless your physician specifically determines its safe
However, the RDA of 2.4 mcg for people under 50 years of age is much harder to meet on a vegetarian or vegan diet
Initial Treatment Dosages for Severe Deficiency Adults with severe vitamin B12 deficiency often start with higher doses
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