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According to the USDA, Vitamin B12 deficiency is believed to be one of the most common nutrient deficiencies in the world, especially among people taking stomach acid-altering medications and antibiotics frequently, along with the elderly and sometimes vegetarians/vegans
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I love the convenience of doing this at home and the price is better than getting it done in a facility VITAstir is an amazing source of healthcare
Cohens f effect sizes were calculated via the effect size package 87 to quantify the magnitude of observed effects
