There is always something to learn. Lots of knowledgeable, helpful people on here.
If you are looking for interesting info., check out dietdoctor.com. Many great, short, information videos from physicians and experts. Most of their content is free, without any membership whatsoever. If you do want access to the complete content, sign up for the 30-day free trial membership. Put a tickler on your calendar to cancel if you don’t want to keep it beyond that. It is $9.99/mo. I’ve gone through most of the content, however, I still subscribe because I believe in promoting their mission. Their site is free of any ads or products to purchase.