The peptide dosage chart provides a quick reference
Older adults may benefit from getting enough of the vitamin as it appears to play a vital role in maintaining good central vision and protecting against age-related macular degeneration
Injections are particularly appropriate for those with: Pernicious anaemia, an autoimmune condition affecting B12 absorption Conditions affecting the stomach or small intestine, such as Crohns disease or coeliac disease Those who have had gastric surgery or bariatric procedures Strict vegans and vegetarians not meeting their B12 needs through food or oral supplements For those who can absorb B12 normally, oral supplements are generally an effective and well-evidenced alternative to injections
In these instances, elevated B12 may not be the root cause of illness but a biomarker that may signal a deeper health concern needing investigation
Nausea, diarrhea, vomiting, constipation, reflux, and reduced appetite are most common