I worked with a slim fellow once who told me he only ate twice a day.
He had a huge breakfast, a moderate lunch and no dinner at all. This sounds impossible for most of us to follow, but the logic is sound. https://keating-beck-2.technetbloggers.de/for-most-people-losing-weight-seems-to-be-a-losing-proposition-and-not-in-a-good-way-they-try-any-number-of-diets-only-to-find-that-the-pounds-continue-to-creep-back-if-you-f-1720099090