Yeah.
When I wanted to work on lowering my cholesterol (total and LDL), I looked at diet and exercise, since I'm not going to take pills (unless absolutely necessary, deemed by me and my doc). It's pretty well proven that exercise helps a lot of bodily ailments.
So I looked up, "What foods help lower cholesterol?" I didn't pay attention to the anecdotal stuff like "My neighbor's mechanic's mother-in-law's cousin's friend did this" (ok, an exaggeration). But there was a bit of consensus and oatmeal was in the top 5, or 8, or 15 foods. That's a starting point.
Then I looked up "How does oatmeal help lower cholesterol?" and got peer reviewed studies that explained how the researchers ran their studies (nitty gritty stuff, mostly over my head, but necessary so someone else can try to replicate it) and their results.
I started eating oatmeal (old fashioned, not instant) and steel cut oats for breakfast M-F, and sometimes dinner on Saturday. (Yes, really, for dinner.) I mix in banana, chia seeds, and berries.
My cholesterol went from 241 to 220 in about 6 months' time. I'm still doing it, and am looking forward to this summer when I have my next physical.