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B12 can be given, orally, or through intramuscular injections
Animal products like meat, dairy, and eggs are primary dietary sources
For optimal B12 intake from meat sources, incorporating a variety of animal proteins, including occasional servings of organ meats (except during pregnancy), provides the most comprehensive nutritional approach
In most people, both of them can convert into each other
Average daily recommended amounts for different ages are listed below in micrograms (mcg): Teens 14-18 years 2.4 mcg Adults 2.4 mcg What foods provide vitamin B12
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