Vitamin B12 does also accumulate in a few plant-based sources, including some mushrooms, seaweed, and nutritional yeast, but ...

“As you age, your ability to absorb vitamin B12 may decline so I often recommend up to 1,000 mcg per day.” Adults need about 2.4 micrograms of B12 a day (that much can be found in one portion ...

This medication is given by injection into a muscle or under the skin as directed by your doctor. The dosage is based on your medical condition and response to treatment. Injections may be given ...

such as 500 mcg or 1,000 mcg, but because your body absorbs only a small percentage, those doses are considered safe. A prescription form of vitamin B12 can be given as an injection, notes the NIH ...

Vitamin B12, or cobalamin, is an essential nutrient that helps boost metabolism and strengthen the immune system. Here's a list of foods loaded with the healthy nutrient. Milk is also considered to be ...

However, 800 to 1,000 IU is the dose that may have a better chance of giving a patient a normal vitamin D level. In some countries, vitamin D is listed in micrograms, and the relationship is as ...