Fat A major source of energy in the diet. All food fats have 9 calories per gram. Unsaturated fat: A fat that is liquid at room temperature. Vegetable oils are unsaturated fats. Cholesterol A fat-like substance that is made by the body and is found naturally in animal foods such as meat fish poultry eggs and dairy products. Body mass index A measure of body weight relative to height. BMI can be used to determine if people are at a healthy weight overweight or obese. Low-density lipoprotein A form of cholesterol that circulates in the blood. Commonly called “bad” cholesterol. Metabolism All of the processes that occur in the body that turn the food you eat into energy your body can use. Obesity Refers specifically to having an abnormally high proportion of body fat.[1] A person can be overweight without being obese as in the example of a bodybuilder or other athlete who has a lot of muscle. However many people who are overweight are also obese. Calorie A unit of energy in food. Foods have carbohydrates proteins and fats. Gestational diabetes A type of diabetes mellitus that can occur when a woman is pregnant. Glucose A building block for most carbohydrates. Digestion causes carbohydrates to break down into glucose.