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Vitamin C contributes to normal collagen formation for the normal function of skin, bones, cartilage, gums, and teeth
Certain populations are at higher risk of vitamin B12 deficiency, including older adults (due to reduced gastric acid production), individuals following strict vegan or vegetarian diets, those with pernicious anaemia (an autoimmune condition affecting intrinsic factor production), patients who have undergone gastric or ileal surgery (including bariatric procedures), and those taking medications that affect gastric acid secretion (such as proton pump inhibitors or H2 antagonists) or intestinal absorption (including metformin)
Ni F, et al
Others exclude weight-loss treatment entirely, even when patients clearly meet medical criteria
The set is supplied in sealed vials and shipped cold-chain
The supplements were found to contain drug substances and pose risks
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