Protein fuels the brain, hormones, and is great for the metabolism overall.

Beef, grass-fed 

Bison, grass-fed 

Eggs, pastured 

Fish, wild-caught 

Lamb, grass-fed 

Pork, pastured 

Poultry, pastured 

Protein powder (without artificial ingredients) 

Shellfish, wild-caught 

Spirulina, Chlorella (protein-dense algae) 

Wild game

Nuts, seeds, beans, certain grains, and dairy foods have a significant ratio of protein. While these are actually carbohydrates or fat dominant foods they are also high in protein.