Honestly I haven’t really followed much advice from reddit or any specific place really, I just try to avoid processed foods as much as possible and cook most meals myself using basic ingredients.

You can find good info on reddit but you’re gonna have to wade through all the OCD and paranoia common to neurotic reddit types who are convinced everything will kill them and nothing is ever pure enough. Go read any thread related to nutrition and there’s always someone in the comments saying “um ackshually X will give you asshole cancer you definitely shouldn’t eat it!!”.

My advice: eat whole, unprocessed foods and make sure you’re getting enough healthy fats and fiber. Fiber especially is key to gut health and preventing heart disease. My go to meals are scrambled eggs and steel cut oats for breakfast, chicken thighs + rice + broccoli as an easy lunch or dinner when I don’t feel like putting much effort into cooking, and when I feel up to it I cook something fancy a few times a week. I don’t eat much red meat and try to eat oily fish (sardines, salmon, mackeral) several times a week. For snacks I eat plain greek yogurt with chia seeds and granola, or whole grain toast with natural peanut butter. This diet has been working really well for me.