Another doctor I have came to appreciate more recently is Dr Sten Ekberg. I have only watched some of his videos the last couple months. But the more I watch the more impressed I am. I never liked his mannerisms and watching him (I know, stupid reason, but it is what it is) as well as the more redneck Dr Ken Berry. But I find his research to be very complete, and he explains a lot of the more technical aspects of diet better than anyone else I have found. As far as mannerisms I love watching Dr Annette Bozworth (she is a cutie - I know - sexist - bad me, bad me) and her research is good. But she does ramble and makes some excessively long videos. Still a good source (and easier on the eyes than the other two bozos).

https://www.youtube.com/results?search_query=dr+sten+ekberg

He gives some specific good and bad lists of foods for low carb/keto. Good food recommendations in the link below.

https://www.youtube.com/watch?v=fdr2JPLWNvY&list=PLEACFEF5EA012064B

John