Also known as Cyanocobalamin, Methylcobalamin, Adenosylcobalamin
Caution. Generally safe; very high doses can mask folate deficiency in rare cases.
Vitamin B12 is a water-soluble vitamin required for red blood cell formation, nerve function, and DNA synthesis. It is commonly supplemented by older adults, people on certain medications, and those following vegan or vegetarian diets due to reduced absorption or low dietary intake. Deficiency can cause fatigue and neurologic symptoms, and supplementation is straightforward and well tolerated.
Checked Jul 19, 2026.
Stack logs each dose you take, tracks what is left in the vial or bottle and shows how you kept to your plan. It records what you choose and does not recommend anything. Everything stays on your phone, with no account.
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