Since only two HIIT sessions should be performed per week another type of cardio will be needed for the rest of the cardio sessions throughout the week. MISS (Moderate Intensity Steady State) cardio is the perfect type of cardio to fill in any remaining cardio that needs to be performed during the week. This will burn a great amount of calories while sacrificing very little muscle tissue and burning fat through different pathways from the HIIT.
So how many carbs should you eat on your high carb day? This is highly dependent on individual metabolism. The increase should be 55%-115% of what you consume on your typical diet. I realize that this is a pretty wide range but it can be narrowed down through body type. If you have a fast metabolism (ectomorphs) then you should stay closer to the higher end of the carb range. If you have a slow metabolism (endomorphs) then you will want to stick closer towards the low end of the carbohydrate range. Lastly, mesomorphs should stay within the mid range on their high carb days.
On high carb days protein intake should be lowered to 0.95 gram per pound of body weight. To calculate this you must multiply your body weight by 0.95. This means if you weigh 180 lbs. then on your high carb days you should eat 180 grams of protein. Don’t worry about losing any muscle mass as a result of lowering protein. The higher insulin levels from the extra carbs will be more than enough to preserve muscle.
Build more muscle: Cardio gets all the glory for melting fat, but it’s actually far more important to focus on building muscle. It’s pretty simple: Lipolysis happens in the mitochondria of the muscles, so the more muscle you have, the more mitochondria, and the more potential to burn. Plus, the more muscle mass you carry, the more your BMR is burning calories at rest. Strength training is also one of the strongest ways to spark production of testosterone and growth hormone, which both help to break down fat, Seedman adds.