What is the best food for protein?

The top foods that have the highest gram of protein in dairy products of are:

1. Greek Yogurt
2. Swiss cheese 
3. Eggs
4. Milk
5. Soy milk

The best meats that contain protein are:

1. Steak 
2. beef
3. pork
4. chicken 
5. turkey breasts
6. tuna
7. octopus
8. any fish generally 

All nuts have a high source of protein in their content, some have more than others.