They are mechanistically different
Overall, debilitating non-healing wounds disproportionally affect older adults, leading to physical restrictions, social isolation, negative emotions, psychological distress and loss of independence (Frykberg and Banks, 2015
J.NewtonR
Common indications include: Pernicious anaemia an autoimmune condition where the stomach cannot produce intrinsic factor, a protein necessary for B12 absorption [8] [9] Malabsorption disorders including Crohn's disease, coeliac disease, or following gastric surgery Strict vegan or vegetarian diets with confirmed deficiency though high-dose oral B12 may be sufficient if no malabsorption exists Certain medications such as metformin or proton pump inhibitors that may interfere with B12 absorption [9] [10] Neurological symptoms including peripheral neuropathy, memory problems, or balance difficulties related to deficiency Diagnosis should be confirmed through blood tests measuring serum B12 levels, full blood count, folate, and often anti-intrinsic factor antibodies
Med Pregl
Specifically, this meta-analysis combined the results of 19 clinical trials of vitamin E supplementation that mostly focused on secondary prevention and, as such, included subjects with pre-existing conditions, including heart disease, end-stage renal failure, and Alzheimer's disease