Snacking when you have diabetes
Blood Sugar and Food
When you have diabetes, you need to control your blood sugar. Insulin or diabetes medicines, as well as exercise, will lower your blood sugar.
To balance this, the food you eat will raise your blood sugar. The three major nutrients in food are carbohydrates, protein, and fat.
- Your body quickly turns carbohydrates into a sugar called glucose. This raises your blood sugar level. Carbohydrates are found in fruit, cereal, bread, pasta, and rice.
- Protein and fat can change your blood sugar too, but not as fast.
If you have diabetes, you need to know how to eat carbohydrate snacks during the day. This will help balance your blood sugar. This is especially important if you have type 1 diabetes.
Learning how to count the carbohydrates that you eat helps you plan what to eat. It will also keep your blood sugar under control.
Your health care provider may tell you to eat a snack at certain times of the day, most often at bedtime. This helps keep your blood sugar from getting too low at night. Other times, you may have a snack before or during exercise for the same reason. Ask your health care provider about the snacks you can have.
You will also need to ask about what snacks to avoid. You also need to know how to control your diabetes when you do snack.
Snacks for a Purpose
Your health care provider can tell you if you should snack at certain times to keep from having low blood sugar.
This will be based on your:
- Diabetes treatment plan from your doctor or nurse
- Expected physical activity
Most often, your snacks will be easy to digest foods that have 15 - 45 grams of carbohydrates.
Snack foods that have 15 grams of carbohydrates are:
- ½ cup of canned fruit (without the juice or syrup)
- ½ banana
- 1 medium apple
- 1 cup melon balls
- 2 small cookies
- 10 potato chips (varies with size of chips)
- 6 jelly beans (varies with size of pieces)
Snacks for Enjoyment
Having diabetes does not mean that you must stop eating snacks. It does mean that you should know what a snack can do to your blood sugar. You also need to know what healthy snacks are. Ask you health care provider about what snacks you can eat. Also ask if you need to change your treatment (such as extra insulin shots) for snacks.
Snacks with no carbohydrates change your blood sugar the least. The healthiest snacks usually do not have many calories.
Read food labels for carbohydrates and calories. You can also use carbohydrate counting books. Over time, it will get easier for you to tell, how many carbohydrates are in foods or snacks.
Some low carbohydrate snacks, such as nuts and seeds, are high in calories. Some low carbohydrate snacks are:
- Celery sticks
- Peanuts (not honey-coated or glazed)
- Sunflower seeds
American Diabetes Association. Nutrition recommendations and interventions for diabetes: a position statement of the American Diabetes Association. Diabetes Care. 2008;31:S61-S78.
American Diabetes Association. Carbohydrate counting. Available at http://www.diabetes.org/food-and-fitness/food/planning-meals/carb-counting. Accessed December 8, 2012.
Last reviewed 12/11/2012 by Nancy J. Rennert, MD, Chief of Endocrinology & Diabetes, Norwalk Hospital, Associate Clinical Professor of Medicine, Yale University School of Medicine, New Haven, CT. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.
- The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition.
- A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions.
- Call 911 for all medical emergencies.
- Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.