The NHS notes that taking up to 2,000 micrograms daily is unlikely to cause harm in most people, though there is generally no benefit to such excessive amounts without confirmed deficiency
Vitamin B12 is present in these foods: meat fish eggs dairy products nutritional yeast some fortified foods Without enough Vitamin B12 in your body, you may start to feel weak and tired due to megaloblastic anemia
I managed nausea with a lot of liquid nutrition and small meals and I never vomited
Clinical Trials: Impact of B12 Supplementation on Metabolites Serum B12 Holotranscobalamin Methylmalonic Acid Homocysteine Notes on Clinical Trials of B12 Supplementation Appendix C
These conditions directly damage the parts of your digestive system responsible for pulling B12 from food
In this second approach, higher similarity resulted in greater weight and, consequently, greater contribution to taxonomic assignment