in my personal experience, eating chocolate has pushed me into IBS trouble, which i realized such a disease existed after 15 years. I stopped eating chocolate for the past 5 years. Now i am happy.

Brain is a sugar sucker. Eat food which has natural sugar (like fruits) and you still be happy. Chocolate is just one sour junk which sugar added to please your bain (which is the trick). I think eat the chocolate without sugar and see if it sill improves brain function

Its kind of cliche to target excess consumption of a rake and claim its terrible since you took the extreme cold turkey. All pleasures are best used moderately. Its an adage as old as good and evil itself.

Bitter, not sour. Lemons are sour.

forgive my english. its not my native.

Why not eat unsweetened chocolate? Take it like a vitamin.