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Ruminants, such as cows and sheep, do have B12-producing bacteria in their stomachs but they need the mineral cobalt to make B12

But those with diets low in animal protein, like vegetarians or vegans, are at high risk for deficiencies

While your body can easily eliminate water-soluble vitamins like vitamin C through urine, fat-soluble vitamins and minerals can build up to harmful levels

Salinas et al 27 The traditional treatment of vitamin B 12 deficiency is the intramuscular injection of cyanocobalamin, generally, 1 mg/d for 1 week, followed by 1 mg/wk for 1 month, and then 1 mg every 1 or2 months ad perpetuum

Mistake 4: storing at room temperature Some researchers leave their vial on the bathroom counter or bedroom nightstand for convenience