l glutathione peptide L-GLUTATHIONE – Research It appears that some small peptides (chains of 2 or 3 amino acids) can be absorbed without further reduction L-Glutathione (reduced, GSH) | Eon

While the exact cause is unknown, it could be blamed on the fact that losing weight rapidly can cause something known as metabolic stress

Armstrong JN, Saganich MJ, Xu NJ, Henkemeyer M, Heinemann SF, Contractor A (2006)

It is an important part of the body because it is required for proper digestion, absorption and synthesis of foods, protein synthesis, and the metabolism of carbohydrates and fats

Expert Opin Investig Drugs 17: 9971011 [DOI] [PubMed] [Google Scholar] Liu Y., Yang J

doi: 10.1164/rccm.200611-1722OC

Wherever a tendon is close to a bone or another tendon, there is a bursa (a fluid-filled sac), which helps to reduce the friction and compression between the tendon and the bone or between the tendons