by Steve Brown

wolves in field The Ancestral Diet Darwin's Pet

You may have heard of the popular Paleo diet, a diet based completely on unprocessed fresh foods high in protein and low in carbohydrates. This diet suggests that if our ancestors evolved successfully over thousands and thousands of years by consuming such a diet, humans can continue to evolve without the processed foods and artificial ingredients that we currently consume.

The concept of the “Ancestral Diet” for dogs is similar in nature. Dogs and other canids evolved successfully through hunting and scavenging, consuming foods that were not at all like the kibble so many are fed today. Recent nutritional science increasingly supports an ancestral-type diet—fresh foods that are high protein and balanced fats—as the healthiest approach to feeding most dogs.

graph Caloric Contribution Darwin's PetThere is no way of knowing for sure exactly what constituted the diet of the ancestors of the modern, domesticated dog. However, there has been a lot of research done on this subject and we do know quite a bit about the diets of the dog’s closest wild relatives such as the wolf, coyote, and fox. One thing that we are quite sure of is that dogs were hunters and scavengers, their diet consisting largely of meat (including some fish) with some lesser amounts of fruit and grasses.

Based on a review of the literature and my own research, I have concluded that the ancestral diet consisted of about 85 to 90% meat (primarily from whole prey) along with small amounts of fish and eggs, and 10 to 15% scavenged grasses, berries, nuts and other vegetation.

This is a high-protein diet, with almost 50% of the calories coming from protein, 44% from fat, and only 6% from carbohydrate. This protein level exceeds all but a few dry and raw foods, and all of the homemade raw foods that I’ve analyzed, unless the recipes specify very lean meats. There are few fat animals in the wild!

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