Use And Abuse Of The Glycemic IndexYour Health Journal | Your ...

From US News & World Report?..

The glycemic index is a very good tool, and its invention redounds to the credit of my friend and colleague, David Jenkins, of the University of Toronto.

That said, the handsaw is also a very good tool; I have no idea who originally invented it, but kudos to him or her.

Of course, a saw is of no help for opening a jar, typing a letter, or tying shoes, and would make a truly bad choice for removing lint from a dress, combing hair, or brushing teeth. The handsaw, and all variations on its theme, is an excellent tool for what it was designed to do but not necessarily for anything else. It can be used well or badly. So, too, can the glycemic index.

In simple terms, the glycemic index measures how much a food raises blood sugar levels. The word ?glycemic? refers to sugar in the blood. The term ?index? is used when scores are established by comparing one measurement to another. Weight is not an index because pounds or kilograms are not measured relative to anything else. The body mass index (BMI) is an index because weight is measured relative to height.

In the case of the glycemic index, which uses a scale from 0 to 100, the reference standard is generally pure glucose (sugar), set at 100. In some cases, white bread has been used as the reference standard. Either way, how much a food affects blood sugar is compared to the reference standard, generating a higher or lower number accordingly.

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Source: http://www.lensaunders.com/wp/?p=5689

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