bpc-157 safety data human 10 questions to ask your doctor about peptides Preclinical safety evaluation of body

The evidence was based on experimental data only briefly described in the patent and included models of: gastric ulcers, heart damage, liver damage, pancreatic injury, kidney damage, experimental diabetes, fever, edema, rhinitis, bone fracture, burns, skin wounds, hypersensitivity reactions, pupil dilation, colon injury, tumour growth, radiation injury, red blood cell development, fertility and lactation, tooth damage, several types of central and peripheral nerve damage, and survival from infection with Trichinosis (i.e., tapeworms) as well as several viruses

This makes B12 supplementation extremely safe, with a low risk of toxicity

So at least in my case, and again, this is anecdata, it seemed to

But after gastric bypass, making less intrinsic factor means less B12 gets absorbed

but adding it more in your diet (more than one banana) won't hurt