However, navigating the information online can be confusingclaims often outpace the science, and safety recommendations vary widely
Excitingly, exogenous GSH supplementation provides an excellent cryoprotective effect on humans (34), mice (35), jacks (36), canines (37, 38), bulls (3942), roosters (4345), ram (46, 47), red deer (48), and boar (4952) spermatozoa by reducing oxidative stress-related damage

Other groups who may benefit include: Patients following gastric surgery (gastrectomy, bariatric procedures) where intrinsic factor production or absorption sites are compromised Individuals with malabsorption disorders such as Crohn's disease, coeliac disease, or chronic pancreatitis Strict vegans and vegetarians with dietary insufficiency, though oral supplementation is usually tried first Elderly patients with atrophic gastritis or reduced gastric acid production Patients on long-term metformin or proton pump inhibitors, which can impair B12 absorption [6] [8] Individuals with nitrous oxide exposure (recreational or medical), which can cause functional B12 deficiency Diagnosis typically involves serum B12 measurement, with levels below approximately 148 pmol/L (though thresholds vary between laboratories) generally indicating deficiency
Nevertheless, this does not mean that oral BPC-157 will be ineffective for joint pain or that BPC-157 injections wont show GI effects
Hwang PM, Pan JS, Sykes BD