Fat is often replaced with unhealthy fillers. When food producers take the fat out of something, they have to replace it with other substances in order for the food to still be edible in regards to flavor and texture. These fillers may include sugar, salt, thickeners, and other chemicals. This results in a product that is still not healthy for you and may have almost as many calories as the full-fat product.
Fat is essential to digestion and overall health. Fats aid in healthy digestion by helping your body digest carbohydrates and prevent the high and low fluctuations in blood sugar levels. Healthy fats, especially omega-3’s, also promote heart and brain health.