Recommended Reading
If you want to learn more about ancestral/traditional diets, I recommend reading these books:

Nutrition and Physical Degeneration

Nourishing Traditions - The Cookbook that Challenges Politically Correct Nutrition and the Diet Dictocrats

Nourishing Broth - An Old-Fashioned Remedy for the Modern World

Nourishing Fats - Why We Need Animal Fats for Health and Happiness

The Nourishing Traditions Book of Baby & Child Care

Deep Nutrition - Why Your Genes Need Traditional Food

Gut and Physiology Syndrome

Gut and Physiology Syndrome

Wild Fermentation

Cancer and the New Biology of Water

Human Heart, Cosmic Heart

Beyond Training

Beyond Labels

The Intelligent Gardener - Growing Nutriend-Dense Food

Traditional Foods Are Your Best Medicine

The Art of Natural Cheesemaking