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Some B12 treatment options include: Oral supplements: to help keep sufficient B12 levels in those with a mild deficiency B12 injections: for more moderate to severe cases of B12 deficiency Diet changes: including eating more B12-rich foods like eggs, milk, meat, nutritional yeast, and foods fortified with B12 (which are often helpful for people who want to eat meat and/or dairy alternatives) Its important to follow the advice from a healthcare professional to make sure that treatment for B12 deficiency is tailored to your unique requirements
Even the review paper summarizing this study noted the results are not overly informative and reliable due to the lack of objective measures
[76] Ruminants, such as cows and sheep, are foregut fermenters, meaning that plant food undergoes microbial fermentation in the rumen before entering the true stomach (abomasum), thus allowing them to absorb the vitamin B 12 produced by the bacteria
The ZRT Laboratory Blog , Accessed May 30, 2022.