Ten years ago I read Susan Powter's Stop the Insanity which led me to read everything by Dr. John McDougall. I'm a strict vegetarian and lost more than 15 pounds while still eating healthy food. I also walk about 7 miles a day, 2.2 mi., in the morning and 4.6 mi. at night. I am through menopause and feel great. Do yourself a favor and read ALL of Dr. John McDougalls books.