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You can improve your symptoms by taking a B12 supplement by mouth, though some prefer to take it as an injection or intravenously
Taking too much (2 to 3 grams, depending on your body) can cause mild side effects, including: nausea stomach cramps fishy body odor And, as we mentioned, a 2013 study in mice found that L-carnitine in red meat might contribute to clogged arteries, although more research is needed
Cost: Usually free or sliding scale
If you swallow a capsule containing 100 mcg, you may absorb 1-3 mcg at best
You can get most of your B12 intake from common foods, like meat, dairy, fish, or fortified foods like bread or cereal
H., Aid, S., Zhang, Y., Becker, K
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