This includes confirmed low serum vitamin B12 levels, pernicious anaemia, malabsorption states such as coeliac disease, inflammatory bowel disease, or post-gastric or bariatric surgery, unexplained anaemia, neuropathy or neurological symptoms consistent with vitamin B12 deficiency, a long-term vegan diet with symptoms or low levels, or failure of oral vitamin B12 supplementation
This depends on your nutritional needs but, generally, B vitamin supplements are formulated to provide much more than you need and this can be a problem for the three B vitamins that can cause toxicity niacin, folate and B-6
What users commonly report: Continued gradual fat loss, but slower than weeks 6-8 Body composition improvements consolidate Some users plateau around week 10 Decision point: Most protocols recommend stopping at 8-12 weeks with a 4-6 week break before repeating
Who Should Take B12 Supplements