Eat Fat, Lose Weight by Ann Louise Gittleman, Ph.D. proves that fat is your best friend, not your enemy when it comes to weight loss. The book provides easy to understand information about the Omega-3, 6, and 9 fats from fish oil, flax oil, evening primrose oil, borage oil, olive oil and avocado - and how these fats can burn excess body fat, lower cholesterol, heal depression, and increase your energy and alertness.