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Do French Fries Affect Blood Glucose Levels in Type 2 Diabetes?
French fries may be tasty, but they definitely aren't healthy. A single restaurant serving can have as many as 491 calories and 23.9 grams of fat, and even a small order of fast food fries has about 207 calories and 9.2 grams of fat. Diabetics should be particularly careful to watch how many fries they eat because of their high carbohydrate content and glycemic index score.
Carbohydrate Content
Diabetics need to keep their carbohydrate consumption at about the same level for each meal, which is typically between 45 and 60 grams, according to the American Diabetes Association 2. This helps prevent spikes in their blood sugar levels. Just 10 french fries cooked at home from frozen have 19 grams of carbohydrates. A small order of fast food fries has about 28.6 grams, and a typical order of restaurant fries has 63.2 grams of carbohydrates.
- Diabetics need to keep their carbohydrate consumption at about the same level for each meal, which is typically between 45 and 60 grams, according to the American Diabetes Association 2.
- Just 10 french fries cooked at home from frozen have 19 grams of carbohydrates.
Glycemic Index
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The glycemic index helps predict how much foods will increase your blood sugar levels, with foods that are high on the glycemic index, with scores between 70 and 100, being likely to cause spikes in your blood sugar levels. French fries are a high-glycemic-index food, with a score of 75. This means eating french fries is likely to cause your blood sugar levels to increase, although you can minimize this effect by eating fries along with foods that are low on the glycemic index such as non-starchy vegetables and most fruits.
- The glycemic index helps predict how much foods will increase your blood sugar levels, with foods that are high on the glycemic index, with scores between 70 and 100, being likely to cause spikes in your blood sugar levels.
- This means eating french fries is likely to cause your blood sugar levels to increase, although you can minimize this effect by eating fries along with foods that are low on the glycemic index such as non-starchy vegetables and most fruits.
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References
- Harvard University School of Public Health: Carbohydrates and Blood Sugar
- American Diabetes Association: Carbohydrate Counting
- Potato, french fries, from fresh, fried. FoodData Central. U.S. Department of Agriculture. Published April 1, 2020.
- McDONALD'S, french fries. FoodData Central. U.S. Department of Agriculture. Published April 1, 2020.
- Robertson TM, Alzaabi AZ, Robertson MD, Fielding BA. Starchy carbohydrates in a healthy diet: The role of the humble potato. Nutrients. 2018;10(11):1764. doi:10.3390/nu10111764
- National Institutes of Health Office of Dietary Supplements. Vitamin C fact sheet for health professionals. Updated February 27, 2020.
- National Institutes of Health Office of Dietary Supplements. Vitamin B6 fact sheet for consumers. Updated December 10, 2019.
- Slavin JL. Carbohydrates, dietary fiber, and resistant starch in white vegetables: Links to health outcomes. Adv Nutr. 2013;4(3):351S-5S. doi:10.3945/an.112.003491
- Al-Mana NM, Robertson MD. Acute effect of resistant starch on food intake, appetite and satiety in overweight/obese males. Nutrients. 2018;10(12). doi:10.3390/nu10121993
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- Eke Gungor H, Uytun S, Murat Sahiner U, Altuner Torun Y. An unexpected cause of anaphylaxis: Potato. Eur Ann Allergy Clin Immunol. 2016;48(4):149-52.
- Tolkki L, Alanko K, Petman L, et al. Clinical characterization and IgE profiling of birch (Betula verrucosa)--allergic individuals suffering from allergic reactions to raw fruits and vegetables. J Allergy Clin Immunol Pract. 2013;1(6):623-31.e1. doi:10.1016/j.jaip.2013.07.010
- Fiocchi A, Dahdah L, Riccardi C, Mazzina O, Fierro V. Preacutionary labelling of cross-reactive foods: The case of rapeseed. Asthma Res Pract. 2016;2:13. doi:10.1186/s40733-016-0028-4
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- Potato, french fries, from frozen, fried. FoodData Central. U.S. Department of Agriculture. Published April 1, 2020.
- BURGER KING, french fries.FoodData Central. U.S. Department of Agriculture. Published April 1, 2020.
- Potato, french fries, restaurant. FoodData Central. U.S. Department of Agriculture. Published April 1, 2020.
- Frozen potato products, fries, hashbrowns, tater tots. USDA Foodkeeper App. Updated April 26, 2019.
Writer Bio
Based in Massachusetts, Jessica Bruso has been writing since 2008. She holds a master of science degree in food policy and applied nutrition and a bachelor of arts degree in international relations, both from Tufts University.