UUnderwater Weighing
A research method for estimating body fat. A person is placed in a tank, underwater, and weighed. By comparing weight underwater with weight on land, one can get a very good measure of body fat.
Unsaturated Fat (un-SATCH-er-ay-ted)
A fat that is liquid at room temperature. Vegetable oils are unsaturated fats. Unsaturated fats include polyunsaturated fats, and monounsaturated fats. They include most nuts, olives, avocados, and fatty fish, like salmon.
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