1. Eggs Protein content: 35% of calories in a total egg. 1 giant egg has 6 grams of protein, with 78 calories. 2. Almonds Protein content: 13% of calories. 6 grams per ounce (28 g), with 161 calories. 3. Chicken Breast Protein content: 80% of calories. 1 roasted chicken breast without skin contains 53 grams, with only 284 calories. 4. Oats Protein content: 15% of calories. Half a cup of raw oats has 13 grams, with 303 calories 5. Cottage .