Individuals with Lebers disease: A rare genetic condition that primarily affects the optic nerve, Lebers disease becomes more serious in people who take vitamin B12 supplements
[DOI] [PMC free article] [PubMed] [Google Scholar] 19.Anbari A.B., Deroche C.B., Armer J.M
By understanding the process, they felt more in control of their progress
[1] [15] While specific fatigue rates are not prominently highlighted in the FDA-approved labeling, post-marketing surveillance and patient-reported experiences suggest that some individuals do experience tiredness, particularly during the first 48 weeks of treatment or following dose increases
That usually means prioritizing protein, doing simple strength training, and avoiding extreme calorie restriction that can backfire
That said, no supplement can be guaranteed free of side effects for every user - individual responses vary, and safety always depends on personal health context