Intermittent Fasting For Women After 50

This book needs to be edited. Some of it doesn't even make sense and I am left wondering what she meant or guess based on context. I really didn't learn anything I didn't already figure out on my own. I think more sources would be great too. It sometimes says “there was a research” but doesn't say more about it than that. What year, by who, when was it published? How do I know if the statistics used are accurate?