This quick reference is your comprehensive lookup of diabetes terms and their meanings.

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Fasting blood glucose test -  A method for finding out how much glucose (sugar) is in the blood. The test can show if a person has diabetes. A blood sample is taken in a lab or doctor's office. The test is usually done in the morning before the person has eaten. The normal, nondiabetic range for blood glucose is from 4 to 6 mmol/l before meals and less than 8 mmol/l after meals, depending on the type of blood being tested.
Fats -  One of the three main classes of foods and a source of energy in the body. Fats help the body use some vitamins and keep the skin healthy. They also serve as energy stores for the body. In food, there are two types of fats: saturated and unsaturated. Saturated fats are solid at room temperature and come chiefly from animal food products. Some examples are butter, lard, meat fat, solid shortening, palm oil, and coconut oil. These fats tend to raise the level of cholesterol, a fat-like substance in the blood.
Fatty acids -  A basic unit of fats. When insulin levels are too low or there is not enough glucose (sugar) to use for energy, the body burns fatty acids for energy. The body then makes ketone bodies, waste products that cause the acid level in the blood to become too high. This in turn may lead to ketoacidosis, a serious problem. See also: diabetic ketoacidosis.
Fibre -  A substance found in foods that come from plants. Fibre helps in the digestive process and is thought to lower cholesterol and help control blood glucose (sugar). The two types of fibre in food are soluble and insoluble. Soluble fibre, found in beans, fruits, and oat products, dissolves in water and is thought to help lower blood fats and blood glucose (sugar). Insoluble fibre, found in whole-grain products and vegetables, passes directly through the digestive system, helping to rid the body of waste products.
Fructose -  A type of sugar found in many fruits, vegetables, and honey. Fructose is used to sweeten some diet foods. It is considered a nutritive sweetener because it contains calories.
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