The scoop on fat is that just like carbs, good fats are good, bad fats are bad and too much of them – of anything really, is not good for you. Saturated fats are very important to gain solid muscle naturally, contrary to what many people think. And there are many cholesterol-containing foods that that tend to get a bad rap but they, too, are necessary for muscle growth. It is the hydrogenated, partially-hydrogentated, and trans-fatty acid fats that should be avoided at ALL costs.