Flaxseed Oil: Flaxseed oil contains 120 calories per tablesoon, or 40 calories per teaspoon. Since it is calorie dense (it is a good fat) be careful to measure correctly. It is rich in Omega-3 fatty acids and alpha-linolenic acid (ALA). These fats helps slow down the digestion of protein, so add some to your nighttime casein protein shake or cottage cheese.