Fasting Blood Glucose Test: a test to check the blood glucose level when the person has not consumed food for nearly 8-12 hours. It helps determine if the person is diabetic or is prone to the disease.
Fat: is one of the three vital nutrients in food. Excessive calorie intake is stored as fat in the body and is a reserve supply of energy. In food, fat can be classified as saturated and unsaturated.
Fatty Acids: in case of insufficient sugar (glucose) in the body and a low level of insulin, the body takes up the fatty acids to use for the sake of its energy requirements.
Fiber: a material in food that essentially comes from plants. There are 2 types of fibers. Soluble fiber which enables in lowering fat and glucose whereas insoluble fiber helps in discarding wastes from the body.
Fluorescein Angiography: a test to study the blood vessel complaints in the eye. A dye is injected in the arm vein and photographs are taken as the dye passes through the blood vessels in the eye.
Food Exchange: please refer Exchange List
Fractional Urine: is the urine collected within a specific time period during the day. An example would be that of morning to afternoon, afternoon, o evening, evening to night and the again night to morning.
Fructosamine Test: it measures the blood glucose molecule that has bonded with the protein molecules. The average glucose level of the person in the past three weeks can also be ascertained by this test.
Fructose: a natural sugar that can be found in various fruits and also honey. It is also used as a sweetener for certain diet foods. Fructose has a calorie content of 4 per gram.