Lindsey Desoto is a licensed, registered dietitian and experienced medical writer.
Dr. Danielle Weiss is the founder of the Center for Hormonal Health and Well-Being, a personalized, proactive, patient-centered medical practice with a unique focus on integrative endocrinology. She enjoys giving lectures and writing articles for both the lay public and medical audiences.
Diabetes is a chronic health condition that occurs when too much sugar, or glucose, is in the blood.
Fortunately, with proper treatment and dietary changes, adverse health outcomes can be prevented. One diabetes meal planning technique that is used to manage blood glucose is carb counting, which is slightly different from calorie counting.
Carb counting involves keeping track of the carbs in your snacks, meals, and beverages to manage blood sugar levels.
This article will discuss how to count carbs for diabetes and why it's beneficial for keeping your blood sugar levels in check.
The carbohydrates in foods we eat break down into glucose, which causes your blood sugar to rise. Normally, when blood glucose goes up, the pancreas releases insulin. Insulin is a hormone made in the pancreas that enables blood glucose in the body’s cells to be used for energy.
For people with diabetes, the body is unable to use insulin properly or produce enough insulin. This leads to high glucose levels circulating in the blood.
Verywell / Jessica Olah
Carb counting is a flexible way to eat the foods you enjoy while maintaining a low-carb diet. It also helps you learn how certain foods affect your blood sugar so you can match the foods you eat to your insulin dose.
The three types of carbohydrates found in food are:
Sugar is a type of simple carbohydrate, meaning the body breaks it down quickly. This can cause blood glucose levels to rise and fall at very fast rates. Sugar is naturally found in fruits and milk. It’s also frequently added to packaged foods like candy and sodas.
Starches are found naturally in many foods that we eat. This includes bread, pasta, rice, and certain vegetables, like potatoes and corn.
Aim for consuming whole, minimally processed starches. Whole grains provide fiber and other vitamins and minerals essential for good health. Try to get at least half of your daily starch intake from whole grains such as brown rice, oats, and quinoa.
Fiber is a plant-based nutrient that the body can’t digest. It helps you feel full and slows digestion. Foods high in fiber can reduce your risk of heart disease and help to manage blood sugar. Good sources of fiber include whole grains, nuts, seeds, and beans.
Current guidelines from the American Diabetes Association suggest that there isn't an exact percentage of calories from protein, carbs, or fat a person with diabetes should include in their diet.
However, according to the Centers for Disease Control and Prevention (CDC), most adults with diabetes should aim to get half of their daily calories from carbs.
This means that if you take in 1,800 calories daily, 800–900 calories should come from carbohydrates. Each gram of carbohydrate is four calories, so you would need around 200–225 grams of carbs each day.
The main goal of carb counting is to keep blood glucose levels stable by dividing up your total daily carbohydrate allowance evenly among meals.
Most adults with diabetes should aim to get 45–60 grams of carbs per meal and 15–30 grams of carbs per snack.
For diabetes meal planning, one carb serving is equal to 15 grams of carbohydrates.
Here are some foods that have around 15 grams of carbohydrates:
Non-starchy vegetables, including carrots, asparagus, and leafy greens like broccoli and spinach, are much lower in carbohydrates than starchy vegetables. For instance, one-half cup of cooked broccoli contains just 5 grams of carbohydrates.
Protein and fat sources do not contain enough carbohydrates to count toward your daily allowance. However, they are important to include in each meal to slow the uptake of glucose in your bloodstream and provide you with energy.
The following sample meal plan provides roughly 1,800 calories. It is divided into 40–60 grams of carbohydrates per meal and 15–30 grams of carbohydrates per snack. The amount of carbohydrates per food is listed in parentheses.
Breakfast:
Total carbohydrates: 63 grams
Snack:
Total carbohydrates: 25 grams
Lunch:
Total carbohydrates: 51 grams
Snack:
Total carbohydrates: 30 grams
Dinner:
Total carbohydrates: 49 grams
Here are a few tips to help you get started counting carbs.
Nutrition Facts labels located on most food items tell you how many carbohydrates are in one serving. This means that if you consume more than the serving size, you'll need to account for the additional carbohydrates.
For example, if a bag of chips contains two servings per bag, one serving equals 15 grams of carbohydrates. If you eat the entire bag of chips, you'll have consumed two of those servings, or 30 grams of carbohydrates.
You don't have to worry about adding the fiber and sugar content because they're already included in the total carbohydrate content listed on food label.
When you first start carb counting, it's important to accurately account for carbs in all food sources.
Measuring out serving sizes greatly improves accuracy and helps you to become familiar with portion sizes. For some foods, you may find it helpful to use a food scale for an accurate measurement.
To make it easier to stay aware of your carbohydrate intake, try keeping a food diary. This is a great tool to help you keep track of your carb intake. It can also help you learn more about your eating patterns and help you identify foods that negatively impact your blood glucose levels.
Some people choose a pen and paper food diary, while others find using an app or making notes on their phone easier.
If you want to start counting carbs but aren't sure if it's right for you, consider meeting with a registered dietitian. A dietitian can answer any questions you may have and work with you to develop a meal plan based on your food preferences, budget, and individual carbohydrate needs.
You can find a registered dietitian near you by visiting the Academy of Nutrition and Dietetics website and entering your zip code under “Find a Nutrition Expert.”
Alternatively, you can learn more about carb counting by visiting the American Diabetes Association or downloading a carb counting app such as Carb Manager, MyFitnessPal, or MyPlate Calorie Counter.
Counting carbs is a proven method to promote glycemic control (managing your blood sugar levels). It involves setting a daily carbohydrate target in grams and dividing the number throughout the day,
For best results when carb counting, choose high-quality carbs and avoid processed foods. The goal is to choose more nutrient-dense carbohydrates that include vitamins, fiber, and minerals. Pair these with lean proteins, non-starchy vegetables, and healthy fats for a balanced diet.
If you have diabetes, carbohydrate counting is a great tool to learn portion control and keep your blood sugar in check. If you decide to start counting carbs, it's important to give yourself grace throughout the process and avoid getting too caught up in the numbers.
If you're newly diagnosed and haven't received a personalized diet education, it's best to speak with a registered dietitian or certified diabetes educator. If you're unsure where to find a registered dietitian, have a conversation with your primary healthcare provider, who can refer you to one.
According to the CDC, people with diabetes should get about half of their daily calories from carbohydrates. If you eat 1,800 calories per day, around 900 of them should come from carbs.
Yes. During times of stress, your body releases the stress hormone cortisol. When cortisol levels are high, your body doesn't properly respond to insulin. This causes elevated blood sugar levels.
Popcorn, Greek yogurt, and boiled eggs are all excellent on-the-go snacks for people with diabetes. Raw vegetables paired with hummus is also a great option.
National Institute of Diabetes and Digestive and Kidney Diseases. What is diabetes?
American Diabetes Association. Types of carbohydrates.
American Diabetes Association. Get to know carbs.
American Diabetes Association Professional Practice Committee. 5. Facilitating behavior change and well-being to improve health outcomes: Standards of medical care in diabetes—2022. Diabetes Care. 2022;45(Supplement_1):S60-S82. doi:10.2337/dc22-S005
Centers for Disease Control and Prevention. Diabetes and carbs.
Michigan Medicine of University of Michigan Health. Diabetes: counting carbs if you don't use insulin.
Diabetes Education Online of the University of California. Blood sugar & other hormones.
Lindsey Desoto is a registered dietitian with experience working with clients to improve their diet for health-related reasons. She enjoys staying up to date on the latest research and translating nutrition science into practical eating advice to help others live healthier lives.
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