 Corporations know these ingredients trick you into overeating. This ingredient is found in basically everything. Regularly consuming it slows your body's production of leptin, the chemical that tells your brain, you're full, stop eating. The culprit? High fructose corn syrup. This ingredient increases the shelf life of your favorite foods, but it's processed in a way that removes the nutritious parts that help you slowly digest it, causing your blood sugar to fluctuate wildly, leaving you hungry. The sneaky ingredient? Refined flour. Finally, here's one we find in everything from soda to oatmeal to low-fat yogurt. Just like refined grains, this ingredient has been separated from all the nutrients that help you slowly and gradually digest it. Instead, it's chemically designed to speed up your digestive process and leave you needing more. What are we talking about here? Processed sugar.