do b12 injections cause weight gain Vitamin Injections: What They Can and Can't The Skinny Shot for Weight

ClinicalTrials.gov exact-name search, accessed 2026-07-12 ClinicalTrials.gov exact-name search, accessed 2026-07-12

Taneja S, Bhandari N, Strand TA, et al

Since B12 is found primarily in animal products, including meat, fish, dairy, and eggs, a substantial reduction in food intake can reduce B12 consumption below optimal levels, particularly for patients who were already borderline deficient before starting treatment or whose diets lean toward plant-based foods

Vegans have no reliable dietary b12 sources unless they consume fortified foods or supplements

DOSAGE AND ADMINISTRATION: Piglets: 0.5 - 1 ml per 10 kg body weight