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Determinación del IG

Glicemix Index Laboratories (USA)

GI Determination

GI Determination Standard protocol requires that ten normal subjects are studied on multiple occasions (maximum 3 per week) in the morning after an overnight fast.

After a fasting blood sample is taken, subjects eat a test meal containing 50g available carbohydrate and have further blood samples at 15, 30, 45, 60, 90 and 120 minutes after starting to eat. Capillary blood is obtained by finger-prick and whole blood glucose determined on-site with an automatic analyzer using the glucose oxidase method.


Each subject conducts one trial of each test food and 3 trials of the reference food. The reference food can be anhydrous glucose or white bread (analyzed so its composition is exactly known). If large numbers of foods are being tested, a reference food trial should be done for every 6-7 test foods. This ensures that there are no changes in subject's glucose responses with time.

Blood samples are analyzed at our facility by our laboratory technicians. The resulting glucose values are used to calculate the Glycemic Index.

Our GI protocol exceeds the standards set by the World Health Organization.

Health Benefits

The health benefits of making nutritional choices which affect the stability of your blood sugar throughout the day are far-reaching.

Research has shown that diets based on the GI can:

Assist in reducing body weight

Stabilize blood sugar

Control appetite

Improve energy

Enhance memory

Balance mood

Promote regularity

A low GI diet can help to prevent and control:


Cardiovascular disease

Some cancers

Other chronic conditions

Consumer awareness of the Glycemic Index, and the simplicity of choosing foods with the appropriate GI ratings, is growing rapidly. Food producers who have essential GI information available have a distinct market advantage, and a unique opportunity to meet a burgeoning consumer demand.