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Energy. If you’re not taking vitamin B12, forget about having energy. As The Dr. Oz Show has recommended, “End your energy crisis with Vitamin B12.” The nice thing about sublingual pills is “you don’t need a doctor, you don’t need a prescription.”
And don’t get me started on metabolism. If you want to “supercharge your metabolism and energy levels,” Amazon can deliver you a tall bottle of B12 supplements by the end of the day. Your metabolic processes will be the envy of the neighborhood. (“Is Janice … on something?” “Yes—B12!”)
These are the sort of vague marketing claims that have propelled the cobalt-based compounds sold as B12 into American hearts and minds and blood in ever-growing quantities. They are extrapolations from the fact that B12 deficiency causes anemia, and correcting that deficiency will alleviate symptoms of fatigue and weakness. But as the National Institutes of Health notes, “Vitamin B12 supplementation appears to have no beneficial effect on performance in the absence of a nutritional deficit.”
Posted by The Atlantic.