This is because there are few vegan foods that contain B12 and also because the body finds it significantly more difficult to absorb B12 from the few vegan sources that have it
While it depends on individual metabolism and the frequency of these injections, usually, they tend to last about a week or two in your system
Adults usually get 1000 mcg of Vitamin B12 injected into a muscle
According to a study published in PubMed Central (National Institutes of Health), intravenous administration of vitamin B12 provides a faster increase in B12 levels compared to oral supplementation, making it a potentially better option for patients with severe deficiency
While B12 injections do work, sublingual vitamin B12 has been shown to be more efficient in boosting B12 levels, especially in patients with deficiency
Rams: 12 Weeks per joining & at joining Ewes: 4 weeks pre-joining Ewes: 4 wees pre-lambing Lambs: from 15 kg Pack Size: 1-Litre Registrant: Boehringer Ingelheim Animal Health Australia Pty