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At a glance: RDA: 2.4 mcg/day (adults) UL: Not established (insufficient evidence to set a tolerable upper limit) [ref] Dietary considerations: Vegan and vegetarian diets: Vitamin B12 is only found in animal-based foods, so vegans and vegetarians are often deficient or marginal in their B12 status.[ref] B12 is often added to breakfast cereals and other refined products, so eating a vegetarian diet that includes packaged and refined foods may actually result in higher B12 levels (although probably not in better health)
Symptoms that may indicate low Vitamin B levels include fatigue, depression, low blood pressure, constipation, memory loss, weakness, sore tongue, tingling and numbness in fingers and toes, mood changes and difficulty walking
The capsule format allows for consistent handling and simplified integration into research environments without the need for additional preparation
With slow tapering, some long-term users have virtually lost all their symptoms by the time they take their last tablet, and in the majority symptoms disappear within a few months
Maternal Complications You may develop megaloblastic anemia, nerve issues, or chronic fatigue
