In the liver, methionine is transformed into cysteine. Phospholipid double membranes in cells are the structures most susceptible to an inhibition of oxygen transfer. Essential fatty acids are weakly basic. They bind oxygen, which they transfer to the weakly acid sulfhydril groups of cysteine-containing proteins. Sulphur supply in nutrition is provided by sulfates and proteins containing cysteine.
Sulfates effect the suffatation of proteoglycans.
Cysteine in form of reduced glutathione controls an efficient redox passage of oxygen through protein molecules embedded in phospholipid membranes. For a sufficient supply of sulfate to be secured, table salt is replaced by sea salt. The regular intake of sulfated GAGS, such as chondroitinsulfate and agar is recommended. In addition, native whey products are appropriate in order to maintain a sufficient glutathione level14. In order to remedy the glutathione deficiency in acute situation, a N-acetylcysteine supply proved effective.