Inflammation is associated with schizophrenia, Parkinson’s disease and Alzheimer’s disease. A point I have strongly stressed is that the transsulfuration pathway is dysregulated in many neurological illnesses. With the transsulfuration pathway dysregulated there will de decreased levels of L-cysteine which is synthesized via the transsulfuration pathway. Decreased levels of l-cysteine will lead to decreased levels of taurine. Taurine is synthesized from L-cysteine. The bile acid, taurocholate, is synthesized from taurine. With low levels of taurocholate fatty acids will not be absorbed sufficiently. Alpha–linoleic acid is an essential fatty acid that must be obtained from diets. Diets high in alpha-linoleic acid are protective against inflammation. With low levels of taurocholate sufficient alpha-linoleic acid will not be absorbed which will lead to inflammation. . Inflammation in schizophrenia, Parkinson’s disease and Alsheimer’s disease could be due to low levels of taurine which leads to failures to absorb sufficient alpha-linoleic acid which is protective against inflammation.