The question of whether olive oil increases fats or burns fats is controversial. The fact is that olive oil is rich in monounsaturated fat more than saturated fats. Monounsaturated fats reduce the levels of bad cholesterol in your body and are useful in weight loss and keeping heart diseases at bay. Massaging olive oil in cellulite-affected areas reduces fat deposits. However, use caution; olive oil is still rich in calories, and if taken in excess amounts, it may cause weight gain. If you are using olive oil to gain muscles, match the amount to the intensity of your workouts.