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A 2025 meta-analysis of 16 studies involving 6,098 participants found no statistically significant difference between intramuscular, oral, and sublingual B12 supplementation routes
PMID: 25730455
Sheep and goats: 1 ml per 10kg body weight
The recommended B12 dosage is as follows: Men over 14 years of age should consume 2.4 mcg daily Women over 14 years of age should also consume 2.4 mcg daily Pregnant Women should consume 2.6 mcg daily Lactating Women should consume 2.8 mcg daily Be sure to discuss your interest in B12 with a medical professional prior to beginning any supplementation
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