What does it mean when a food is low on the glycemic index?

The glycemic index describes how much a carbohydrate-containing food raises blood sugar compared with other foods. A low-index food generally causes a smaller rise in blood sugar, so the correct choice is “It does not affect blood sugar as much as those high on the index.” It does not necessarily contain fewer carbohydrates or more calories, and the index does not measure how bulky or easy to digest a food is.

AI-written and checked against the verified answer.