I apologize for my comment about keto.
I understand your response. The purpose of the course is not to compare various diets but instead for us to learn skills to “take control of overeating”. I did not think about it, but it could be more than a full time job comparing and contrasting all the various diets one could present to you! Thanks for your response on this!
For your friend doing keto and yo-yo dieting. I believe the keto does not include processed foods. So if your friend sees this as being deprived, then as we have learned, that could result in yo-yo dieting or over eating. I would not necessarily blame the “keto” food plan. It may just be where she is at in regards to choice.