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One study, for instance, notes that people who are overweight or obese appear to have lower levels of vitamin B12 than those with a body mass index (BMI) that falls within the range considered to be normal. People who took vitamin B12 supplements of their own volition gained between 2.5 and 17 fewer pounds (1.27.7 kg) over ten years compared to those who did not take any form of supplementation with this vitamin

doi:10.1016/j.heares.2010.09.006

The G0/G1 switch gene 2 (G0S2): regulating metabolism and beyond

A vegan diet makes it more difficult to get enough minerals and nutrients like calcium, creatine, iron, K2, and B12 (also known as cobalamin) simply because they are usually found in animal products

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