God created each one of us in His image. When He had finished creating us, God called His creation "good."
God makes people the way He wants them to look. You don't need to loose weight just because the media or friends tell you you need to do so.
That being said, it is important for people to listen to their bodies. Sometimes you may think you're craving some junk food when your body is actually telling you to drink water or that you need a certain nutrient found in certain types of healthy food you haven't had enough of that day.
We also need to listen to all the other signals our body sends us, including feelings of tiredness and sickness coming on.