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Graph depicting blood sugar change during a day with three meals. The glycemic (glycaemic) index (GI; / ɡ l aɪ ˈ s iː m ɪ k / [1]) is a number from 0 to 100 assigned to a food, with pure glucose arbitrarily given the value of 100, which represents the relative rise in the blood glucose level two hours after consuming that food. [2]
A food with a high GI may have a low GL if eaten in small portions, meaning it will have little impact on blood sugar.” GL is more practical for real-world eating habits. Take carrots, for example.
For one serving of a food, a GL of 20 or greater is considered high, a GL of 11–19 is considered medium, and a GL of 10 or less is considered low. Foods that have a low GL in a typical serving size almost always have a low GI. Foods with an intermediate or high GL in a typical serving size range from a very low to very high GI. [citation needed]
A low glycemic food will release glucose more slowly and steadily, which leads to lower postprandial (after meal) blood glucose readings. A high glycemic food causes a more rapid rise in blood glucose levels after meals. High glycemic foods are ideal for energy recovery after exercise or for a person experiencing hypoglycemia.
Inversely, if a food is high on the GI scale, it doesn't automatically mean it's bad for you. Some foods that spike blood sugar, like whole grains and potatoes, can be an integral part of a ...
Some such comparisons can be the glycemic index and the overall nutritional quality index. When the density is defined in proportion to energy contents, nutrient-dense foods such as meats, fruits and vegetables are the opposite of energy-dense food (also called "empty calorie" food), such as alcohol and foods high in added sugar or processed ...
High-fiber cereal Gold, who describes herself as a creature of habit, tends to eat the same thing every weekday morning: a fiber-rich cereal with skim milk and seasonal fruit on the side.
A diet high in plant fibre was recommended by James Anderson. [34] This may be understood as continuation of the work of Denis Burkitt and Hugh Trowell on dietary fibre, [35] which may be understood as a continuation of the work of Price. [36] It is still recommended that people with diabetes consume a diet that is high in dietary fiber.