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Blood Sugar Basics: Eat Smart

Yiwen Lu, MS, RD
January 21, 2026
January 22, 2026

Managing blood sugar starts with balanced meals. In this section, you’ll learn how to use the portioned plate and why the quality and quantity of carbs can make a big difference.

The Portioned Plate

The portioned plate approach makes it easy to decide how much of each type of food to include. Use a 9-inch plate and fill it like this:

  • Half your plate: Non-starchy vegetables, such as broccoli, spinach, and bell peppers.
  • One-quarter: Healthy carbohydrates such as whole grains (brown rice, quinoa, whole-wheat bread), starchy vegetables (potatoes, corn), or legumes (lentils, chickpeas).
  • One-quarter: Lean proteins like chicken, turkey, fish, eggs, tofu, beans, or low-fat dairy (such as yogurt or cottage cheese).

Following this helps you get a variety of nutrients in the right amounts. Think of each part as a puzzle piece that fits together to support your overall health.

The Quality and Quantity of Carbs

Research has shown that nutrition therapy can lower A1C by up to 2% in people with type 2 diabetes in as little as 3 months¹.

Both the quality and quantity of carbs can make a big difference in managing your blood sugar. Use the table below to learn how to make smarter choices.

🤚 Hand Guide to Portion Sizes

Now that you know what kinds of foods to eat and that how much you eat matters too, it’s time to talk about portion sizes. A simple way to measure is by using your hand. It’s always with you and gives you a quick way to estimate how much to eat without needing measuring cups or a scale. The picture below shows how much to aim for at each meal, based on a 2,000-calorie plan.

References:

  1. Briggs Early, K., & Stanley, K. (2018). Position of the Academy of Nutrition and Dietetics: The role of medical nutrition therapy and registered dietitian nutritionists in the prevention and treatment of prediabetes and type 2 diabetes. Journal of the Academy of Nutrition and Dietetics, 118(2), 343–353. https://doi.org/10.1016/j.jand.2017.11.021

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