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8,9 Table 1 Risk Factors for Vitamin B12 Deficiency A multicenter randomized controlled trial of 390 patients with diabetes mellitus showed that those taking 850 mg of metformin three times per day had an increased risk of vitamin B 12 deficiency (number needed to harm = 14 per 4.3 years) and low vitamin B 12 levels (number needed to harm = 9 per 4.3 years) vs
Pregnancy and breastfeeding represent situations where no safety data exists
He is also a member of the scientific advisory board of Partnership for Clean Competition, a nonprofit founded by major sports organizations and dedicated to protecting the integrity of sport
Extended Cycle Approaches While standard protocols recommend 8-12 week cycles, some experienced researchers run longer cycles of 16-20 weeks based on GHK-Cus apparent lack of tolerance development
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