Amino acids
https://www.news-medical.net/news/20231026/Newly-identified-amino-acid-may-play-key-role-in-predicting-outcomes-and-treatment-of-long-COVID.aspx

anyway thatโ€™s not necessarily what I was after today. I have already been down that rabbit hole. Heat (pasteurization) destroys amino acids:

and here is something that I am after:

Depletion of Intracellular Glutamine Pools Triggers Toxoplasma gondii Stage Conversion in Human Glutamatergic Neurons