At the end of the week, look at what you've eaten and put a checkmark beside everything that is unprocessed (a good rule of thumb is anything that can be found on the outside aisles of the grocery store, lean meats, fish, eggs, veggies, fruits, nuts, potatoes, whole grains, legumes, etc.). (hardgainermusclebuilding.com)
Stick to the outside aisles of the grocery store and choose vegetables, fruits, nuts, seeds, meats, and seafood. (grassfedgirl.com)