Nutrition
Vitamin B12 Dietary Sources
Vitamin B12 dietary sources are animal foods and verified fortified plants—vegans need deliberate cobalamin from labels, not assumed produce.
Vitamin B12 dietary sources are concentrated in animal foods—fish, meat, eggs, dairy—and in fortified plant milks, nutritional yeast, and some cereals when labels list cobalamin. Plants do not naturally carry reliable B12; vegan plates need a deliberate fortification or supplement strategy.
Absorption drops with age, metformin, and some gut surgeries. Sprinkling yeast without reading micrograms per serving is guesswork.
Periodic labs help athletes on plant-heavy or aging gut-absorption paths.
Common questions
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Do eggs alone cover B12 for athletes?
Eggs help but may not meet needs for strict vegans or people with absorption issues. Combine food sources with clinician labs and supplements when directed.
Related terms
Put Vitamin B12 Dietary Sources into practice
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