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What is Nutrisystem Diet?

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This diet has been reviewed by U.S. News’ team of expert panelists. Learn more »

The aim: Weight loss and diabetes prevention/control (Nutrisystem D plan).

The claim: Lose up to 13 pounds and 7 inches overall in your first month with Nutrisystem Turbo13. On Nutrisystem Turbo for Men, lose 15 pounds and 7 inches overall in your first month.

The theory: Losing weight can be easier if you outsource meal-management chores. Nutrisystem determines portions, prepares and delivers your meals, and tells you what to eat and when. It makes for guaranteed calorie restriction, the tried-and-true weight-loss tactic.

Nutrisystem is built around portion control and meal planning. A feature of the diet is the glycemic index, a measure of how various carbs affect your blood sugar. The program is high in protein and emphasizes “good” carbs, such as many veggies and whole grains that are digested slowly. That keeps you feeling full longer and your blood sugar and metabolism from going out of whack.

Editor’s Note: Nutrisystem recently rebranded its plan from Lean13 to Turbo13 and added a few new products to the program menu after the 2018 Best Diets rankings were produced. This Nutrisystem profile represents the most current information from Nutrisystem about the diet program. U.S. News’s 2018 diet rankings were based on the original Lean13 option.