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QJM: An International Journal of Medicine

Insert the needle into the vial with powder and inject sterile water into the vial slowly until all powder is dissolved usually takes about 5 seconds

This means vegetarians, vegans, and individuals with certain medical conditions may be at higher risk of deficiency

In animal models, visible effects typically appear after 4-6 weeks of consistent dosing, with long-term treatment producing weight loss and increased lipolytic sensitivity

Vegetarians and vegans generally have higher intakes of folate than omnivores, making them an interesting group to study with regard to homocysteine