bpc-157 safety human studies clinical trials Wolverine Stack: Healing Faster with Peptides The Hidden Risks of BPC‑157:

And here's the cruelty of it

(14) The committee recommended that vitamin B12 be performed in the initial work-up for those with suspected mild cognitive impairment or dementia, but added the caveat, Current data from systematic reviews of randomized double blind trials, however, do not provide evidence of improvement in cognition or dementia with B12 treatment. Ontario Context In fiscal year 2010/2011, more than 2.9 million serum vitamin B12 laboratory tests were billed to the province at a cost of approximately $40 million

Yes, and in fact, some research designs do exactly that to separate endocrine-mediated effects from direct fat cell effects in the same experimental system

B-complex refers to eight distinct vitamins that work both independently and synergistically to support metabolic, neurological, and gastrointestinal function

PMID 3374544