The Importance of Glycemic Index on Postprandial Glycemia and Insulinemia in the Context of the Addition of Fat to Carbohydrate Foods: A Randomized Controlled Trial on Spaghetti Versus Rice as Mixed Meals

Detailed Summary

Pasta and rice are two of the most commonly consumed grains worldwide, where the former has a low GI (e.g. spaghetti) and the latter, usually (as it depends on the type) has a higher GI (e.g. white rice). The most typical ways in which pasta and rice are consumed are with the addition of oil or tomato sauce, and are recommended to be consumed in this way in the Mediterranean diet. The Mediterranean diet has been demonstrated to reduce the risk of cardiovascular disease, improve glycemic control and is encouraged in many clinical guidelines globally for both cardiovascular risk reduction. Some studies have explored the differences in glycemic response of different carbohydrate foods consumed with the addition of fat demonstrating that the glycemic response is indeed reduced.However, the GI may remain of importance even when other means to reduce glycemic response are introduced. The investigators therefore designed a randomized controlled crossover study to explore whether the addition of fat in the form of commonly consumed sauces which are recommended as part of a Mediterranean diet, affects the difference in glycemic response between a commonly consumed low GI and a higher GI carbohydrate food.

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