Reference Article

from Wikipedia, the free encyclopedia

Glycemic index

Glycemic index (also glycaemic index, GI) is a ranking system for carbohydrates based on their immediate effect on blood glucose levels.

It compares carbohydrates gram for gram in individual foods, providing a numerical, evidence-based index of postprandial (post-meal) glycemia.

Carbohydrates that break down rapidly during digestion have the highest glycemic indices.

Such carbohydrates require less energy to be converted into glucose, which results in faster digestion and a quicker increase of blood glucose.

Carbohydrates that break down slowly, releasing glucose gradually into the blood stream, have a low glycemic index.

A lower glycemic index suggests slower rates of digestion and absorption of the sugars and starches in the foods and may also indicate greater extraction from the liver and periphery of the products of carbohydrate digestion.

Additionally, a lower glycemic response equates to a lower insulin demand, better long-term blood glucose control and a reduction in blood lipids.

Note: This article excerpts material from the Wikipedia article "Glycemic index", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-10-01 at 1:45 am EDT

How People Get Addicted to Eating

How People Get Addicted to Eating

Newsy (June 27, 2013) A new study suggests high-glycemic carbohydrates leaves people hungrier and craving food more often.
Powered by NewsLook.com
Your Chances of Dying by 2023? Test Offers Clue

Your Chances of Dying by 2023? Test Offers Clue

AP (Mar. 5, 2013) What are your chances of dying in the next 10 years? Here are some signs: getting winded walking several blocks, smoking, and having trouble pushing a chair across the room. That's according to a new "mortality index" for people older than 50.
Powered by NewsLook.com
'Seeing-Eye' Ring Helps Blind Read With Finger

'Seeing-Eye' Ring Helps Blind Read With Finger

AP (July 8, 2014) The prototype FingerReader is essentially a ring a user wears on their index finger. It has a small camera that scans the text. It also has vibration motors and other cues to help users read in a straight line. (July 8) Video provided by AP
Powered by NewsLook.com
Severe Obesity Might Reduce Lifespan Up To 14 Years

Severe Obesity Might Reduce Lifespan Up To 14 Years

Newsy (July 8, 2014) Researchers evaluated 20 studies and found people with body mass index over 40 were more likely to die early from heart disease, cancer and diabetes. Video provided by Newsy
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins