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its just not as common as its research-grade counterpart
Self-diagnosing and getting shots without clinical proof is not just a waste of money
Lab monitoring Before starting supplementation, your provider may recommend checking vitamin B12 levels using tests such as serum B12, methylmalonic acid (MMA), or homocysteine
Hypersensitivity may develop in patients previously given thiamine, specially after repeated injections of concentrated solution
However, if youre already getting enough vitamin B12 in your diet and dont have a nutrient deficiency, its unclear whether increasing your intake of vitamin B12 will have much of an effect on weight loss.
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