10 papers analyzed
These studies suggest that the daily intake of Vitamin B12 should be in the range of 0.5 to 6 micrograms for adults, depending on individual health status and dietary choices, with specific conditions like pernicious anemia requiring higher doses.
Vitamin B12, also known as cobalamin, is an essential nutrient that plays a key role in the normal functioning of the brain and nervous system, and in the formation of blood. It is particularly important in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, as well as fatty acid synthesis and energy production.
Key insights from the research papers on the daily intake of Vitamin B12 are as follows:
In conclusion, the daily intake of Vitamin B12 varies depending on the individual's age, physiological status, and existing level of deficiency. Adults generally require an Adequate Intake of 4 µg/day, while higher intakes may be necessary for specific populations such as pregnant and lactating women, postmenopausal women, and those with pernicious anemia or food-cobalamin malabsorption. Supplementation with higher doses, ranging from 500 µg to over 1000 µg per day, has been shown to be effective in correcting deficiencies.
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