Why is the fat block only 1.5 grams instead of 3 grams?
Every block of low-fat protein contains approximately one block of “hidden” fat. Therefore by adding one extra fat block for each block of low-fat protein, one is actually consuming two fat blocks (one internal in the protein and one external) for each protein block. If you are using fat-free protein sources such as isolated protein powders, then you should be adding two blocks of fat to achieve the same ratio. Obviously if you are eating higher-fat protein choices, you would not be adding any extra fat blocks to your meal. Remember that every time you add additional fat blocks to a meal they should be composed primarily of monounsaturated fat.