Whether you have TMAU or PATM, the likely culprit is bad gut microbiome/leaky gut.
Eating fermented foods like kefir, kombucha, sauerkraut and kimchi puts live probiotic cultures in your gut and helps to resolve the problem. This is especially true of homemade kefir and kombucha which provide more quantity and diversity of probiotics than store-bought alternatives.
Check out the YouTube channel "The Gut War" and the latest interviews in the channel "Body Odor Sufferers".
This method could take several weeks time and lots of fermented food, but many people are seeing results. Check out the discord group mentioned in "The Gut War" comments sections. We have over 150 members, and growing!