Active cancer, especially hormone-sensitive types, where metabolic accelerators could be contraindicated
That could change after the committee review in July 2026, but today, it's not approved
A vegetarian diet which contains no animal products (including milk products or eggs) does not supply any vitamin B12
For example, after a total gastrectomy, we recommend that patients get B12 supplementation often in the form of B12 injections for the rest of their lives
NAD, Epithalon, SS-31, Thymosin -1 and glutathione studied for cellular research
There's limited evidence that doses above 600mcg provide additional benefit