8 Myths and Factsbr About Your Metabolism Metabolism is the process in which our bodybr turns the food we eat into the energy it needs. Here are eight myths and facts to set the recordbr straight on how your metabolism actually works. 1. Skinnier Peoplebr Have Faster Metabolisms 2. Your Metabolismbr is Based on Genetics 3. A Slow Metabolismbr Means Weight Gain 4. You Can Eat Anythingbr With a Fast Metabolism 5. Spicy Foods Boostbr Your Metabolism 6. Smaller Mealsbr Throughout the Daybr Are Better For You 7. Your Metabolismbr Slows Down as You Age 8.