A word of warning, while the issues of low choline tend to be what shows up in a search, too much can also have negative effects, such as inducing strong depression. Because choline touches so much in the brain/body, there are other things that can happen as well, such as subtle mental effects and changes in blood pressure. TMAO generation may also a concern.

So be careful trying supplements, and monitor your mental/physical state.

Choline from normal food sources isn’t typically a problem, but supplements and additives like lecithin can push people over the edge.

This looks like a decent summary of why it may cause depression: https://pdfs.semanticscholar.org/6fdb/adf596271afea393659cbf... (World Nutrition 2019;10(1):54-62 “Too much of a good thing? Lecithin and mental health”)