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Factors Contributing to Vitamin B12 Deficiency Several factors can contribute to Vitamin B12 deficiency, including reduced stomach acid production in the elderly, which hinders B12 absorption from animal proteins

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In horses, the diverse bacterial population of the gastrointestinal tract has been characterized using fecal samples and varies greatly among the different intestinal compartments [108,109]

By supporting these processes, B12 can help your body recover faster and more effectively