Marilyn Diamond, Who Wrote a Blockbuster Diet Book, Dies at 81"Fit for Life," which she wrote with her husband, was a best seller in the 1980s promoting good health ahead of weight loss. But doctors were critical.
Source: Marilyn Diamond, Who Wrote a Blockbuster Diet Book, Dies at 81 (https://www.nytimes.com/2025/09/12/books/marilyn-diamond-dead.html)