Gestational diabetes A type of diabetes mellitus that can occur when a woman is pregnant. Unsaturated fat: A fat that is liquid at room temperature. Vegetable oils are unsaturated fats. Diabetes Mellitus A disease that occurs when the body is not able to use blood glucose sugar. Blood sugar levels are controlled by insulin a hormone in the body that helps move glucose sugar from the blood to muscles and other tissues. Energy expenditure The amount of energy measured in calories that a person uses. Calories are used by people to breath circulate blood digest food and be physically active. High-density lipoprotein A form of cholesterol that circulates in the blood. Commonly called “good” cholesterol. Hydrogenation A chemical way to turn liquid fat oil into solid fat. This process creates a new fat called trans fatty acids. Nutrition The process of the body using food to sustain life. 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. Saturated fat: A fat that is solid at room temperature. Fats that are in foods are combinations of monounsaturated polyunsaturated and saturated fatty acids. Saturated fat is found in high-fat dairy products like cheese whole milk cream butter and regular ice cream fatty fresh and processed meats the skin and fat of chicken and turkey lard palm oil and coconut oil.