Vegetables such as spinach, lettuce and broccoli are low in protein. Additionally, fruits such as tomatoes, bananas and apples contain only minimal amounts of protein. Whole wheat breads, rice, pasta, cereals and dried beans are also low in protein.
A 1/2-cup serving of a fruit such as pineapple or apricot contains a trace amount of protein. Canned, fresh or frozen vegetables such as green beans or cauliflower contain just 1 gram of protein per 1/2 cup serving.
A serving of a starchy food such as 1 medium baked potato, 4 soda crackers or 2 rice cakes contains only 2 grams of protein. Additionally, 1 slice of white, rye or pumpernickel bread contains 2 grams of protein. Milk products such as 1/2 cup of ice cream or 4 tablespoons of sour cream contain more protein than starchy foods, providing 4 grams of protein per serving.
Soybean, sunflower, olive and safflower oil are healthy fats that contain almost no protein per serving. Cashews, almonds and walnuts also provide healthy fats and a high amount of calories, yet are considered relatively low in protein. A serving of a sweet food such as marshmallows, candy or honey contains almost no protein. Butter mints, gum drops, marmalade and sugar are other sweet foods that contain almost no protein per serving. Beverages such as coffee, tea and soft drinks contain virtually no protein.