Basic Carbohydrate Counting
Medically reviewed by Drugs.com. Last updated on Aug 4, 2025.
What is carbohydrate (carb) counting?
Carb counting is a way to plan your meals by counting the amount of carbs in foods. Carbohydrates are the sugars, starches, and fiber found in fruit, grains, vegetables, and milk products. Carbs increase your blood sugar level. Carb counting can help you eat the right amount of carbs to keep your blood sugar level under control.
What do I need to know about planning meals using carb counting?
- A serving of carbs is about 15 grams (g). A dietitian or healthcare provider will tell you how many servings you should have for each meal and snack. The number of servings will be based on your age, weight, usual food intake, and physical activity level. It will also be based on your blood sugar level and diabetes medicine.
- Check your serving sizes using measuring cups or a food scale. Also read nutrition labels to find out how much carbs are in the foods you eat. See "Total Carbohydrate" on the label for the amount. The amount of carbs in the serving size listed on the package may be more than 15 g. Keep track of the amount of servings you have for each meal and snack. The number of servings you have may need to be adjusted based on your blood sugar level. Do not avoid carbs or skip meals. Your blood sugar may fall too low if you do not eat enough carbs or you skip meals.
Related medications
What are some foods that contain carbs?
- Breads: Each serving of food listed below contains about 15 g of carbs .
- 1 slice of bread (1 ounce) or 1 flour or corn tortilla (6 inch)
- ½ of a hamburger bun or ¼ of a large bagel (about 1 ounce)
- 1 pancake (about 4 inches across and ¼ inch thick)
- Cereals and grains: Serving sizes of ready-to-eat cereals vary. Look at the serving size and the total carbohydrate amount listed on the food label. Each serving of food listed below contains about 15 g of carbs .
- ¾ cup of dry, unsweetened, ready-to-eat cereal or ¼ cup of low-fat granola
- ½ cup of oatmeal or other cooked cereal
- ⅓ cup of cooked rice or pasta
- Starchy vegetables and beans: Each serving of food listed below contains about 15 g of carbs .
- ½ cup of corn, green peas, sweet potatoes, or mashed potatoes
- ¼ of a large baked potato (3 ounces)
- ½ cup of beans, lentils, and peas (garbanzo, pinto, kidney, white, split, black-eyed)
- Crackers and snacks: Each serving of food listed below contains about 15 g of carbs .
- 3 graham cracker squares or 8 animal crackers
- 6 saltine-type crackers
- 3 cups of popcorn or ¾ ounce of pretzels, potato chips, or tortilla chips
- Fruit: Each serving of food listed below contains about 15 g of carbs .
- 1 small (4 ounce) piece of fresh fruit or ¾ to 1 cup of fresh fruit
- ½ cup of canned or frozen fruit, packed in natural juice
- ½ cup (4 ounces) of unsweetened fruit juice
- 2 tablespoons of dried fruit
- Desserts or sugary foods: Each serving of food listed below contains about 15 g of carbs .
- 2-inch square unfrosted cake or brownie
- 2 small cookies
- ½ cup of ice cream, frozen yogurt, or nondairy frozen yogurt
- ¼ cup of sherbet or sorbet
- 1 tablespoon of regular syrup, jam, or jelly
- 2 tablespoons of light syrup
- Milk and yogurt: Foods from the milk group contain about 15 g of carbs per serving.
- 1 cup of fat-free or low-fat milk
- 1 cup of soy, coconut, or flavored almond milk
- ¾ cup of fat-free, yogurt sweetened with artificial sweetener
- Non-starchy vegetables: Each serving contains about 5 g of carbs . Three servings of non-starch vegetables count as 1 carb serving.
- ½ cup of cooked vegetables or 1 cup of raw vegetables. This includes beets, broccoli, cabbage, cauliflower, cucumber, mushrooms, tomatoes, and zucchini
- ½ cup of vegetable juice
How do I use carb counting to plan meals?
- Count carb amounts using serving sizes:
- Pasta dinner example: You plan to have pasta, tossed salad, and an 8-ounce glass of milk. Your healthcare provider tells you that you may have 4 carb servings for dinner. One serving of pasta is ⅓ cup. One cup of pasta will equal 3 servings. An 8-ounce glass of milk will count as 1 serving. These amounts of food would equal 4 carb servings. One cup of tossed salad does not count toward your carb servings.
- Count carb amounts using food labels: Find the total amount of carbohydrate in a packaged food by reading the food label. Food labels tell you the serving size of the food and the total carb amount in each serving. Find the serving size on the food label and then decide how many servings you will eat. Multiply the number of servings you plan to eat by the carb amount per serving.
- Granola bar snack example: Your meal plan allows you to have 2 carb servings (30 grams) for a snack. You plan to eat 1 package of granola bars, which contains 2 bars. According to the food label, the serving size of food in this package is 1 bar. Each serving (1 bar) contains 25 grams of carbs. The total amount of carbs in this package of granola bars would be 50 g. Based on your meal plan, you should eat only 1 bar.
Care Agreement
You have the right to help plan your care. Discuss treatment options with your healthcare provider to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.© Copyright Merative 2025 Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.