The word calorie gets thrown around a lot, but what is a calorie? A calorie is how we measure the energy that a food provides us. We need food energy to survive, so calories are crucial. The key is moderation, however. Think of how bears hibernate. Your body does not know when it will get its next meal, so it holds on to all of the energy it can get just like a bear in the winter.
Calories and Weight Gain
When you eat fats, the fats bypass the liver and travel throughout your body. The second way that we store energy is by the liver storing sugar as glycogen. However, if there is excess sugar then the excess sugar is turned into fat. This fat is also shipped to other parts of the body. This means that if you eat too much sugar or too much fat then the extra energy will be stored as fat in your body. This leads to increased weight and eventually obesity.
Fats vs. Sugars
So now that we know that fats and sugars make body fat, we need to know which one is worse. The simplified answer is that, in excess, fats are worse because 1 gram of fat provides 9 calories, while 1 gram of sugar provides 4 calories. If you stuff yourself with fats, your chances of gaining weights greatly increases. The Mediterranean Diet recommends a diet that uses plenty of healthy fats. These healthy fats still have the same amount of energy as unhealthy fats. This means that you should not eat more than 4 servings of healthy fats, when using the Mediterranean diet.