Carbs in Tomatoes

Carbohydrate and Nutritional Information, Low-Carb Recipes

Tomato Halves
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Nothing says "summer" like a ripe tomato from a local farm or yard! In my view, the other fresh tomatoes are merely imitations - mealy in texture and insipid in flavor. When it's not summer, canned tomatoes, which are usually processed near the fields, actually are of a higher quality than fresh tomatoes.

Carbohydrate and Fiber Counts for Tomatoes

  • ½ cup of chopped tomatoes: 2.5 grams of effective (net) carbohydrate plus 1 gram of fiber and 16 calories
  • 1 tomato, 3 inches in diameter (6.5 oz): 5 grams of effective (net) carbohydrate plus 2 grams of fiber and 33 calories
  • 1 medium cherry tomato (about ½ ounce): ½ gram of effective (net) carbohydrate and 3 calories
  • 1 medium plum tomato (about 2 oz): 2 grams of effective (net) carbohydrate plus 1 gram fiber and 11 calories

Glycemic Index for Tomatoes

There is no scientific study about the glycemic index of tomatoes. Since tomatoes have a fairly low amount of fiber, it could be similar to or slightly lower than that of tomato juice, which two studies showed to be 38.

More Information About the Glycemic Index

Estimated Glycemic Load of Tomatoes

  • ½ cup chopped tomatoes: 1
  • 1 tomato, 3 inches in diameter (6.5 oz): 2
  • 1 medium cherry tomato (about ½ ounce): 0
  • 1 medium plum tomato (about 2 oz): 1

More Information About the Glycemic Load

Health Benefits of Tomatoes

Tomatoes are an excellent source of vitamin C and vitamin A, a very good source of vitamin K and potassium, and a good source of manganese.

Tomatoes also have a lot of lycopene, a pigment which gives tomatoes their red color (although it is also found in orange tomatoes). Lycopene has been shown to have health benefits. such as protection from cancer (prostate cancer has been studied the most in respect to lycopene), heart health, and bone health.

Cooked tomato products, such as tomato sauce, are the best sources of lycopene, because many tomatoes will be concentrated into a small amount of the cooked product.

Low-Carb Recipes with Tomatoes

More Information About Tomatoes at Calorie Count Plus.

More Carb Profiles:


Leroux, MarcusFoster-Powell, Kaye, Holt, Susanna and Brand-Miller, Janette. "International table of glycemic index and glycemic load values: 2002." American Journal of Clinical Nutrition. Vol. 76, No. 1, 5-56, (2002)

Mackinnon ES, Rao AV, and Rao LG. Dietary restriction of lycopene for a period of one month resulted in significantly increased biomarkers of oxidative stress and bone resorption in postmenopausal women. Journal of Nutritional Health and Aging. 2011 Feb;15(2):133-8.

Salem S, Salahi M, Mohseni M et al. Major dietary factors and prostate cancer risk: a prospective multicenter case-control study. Nutrition and Cancer. 2011;63(1):21-7. 2011.

Sesso HD, Liu S, Gaziano JM et al. Dietary lycopene, tomato-based food products and cardiovascular disease in women. Journal of Nutrition Jul;133(7): 2336-41. 2003.

USDA National Nutrient Database for Standard Reference, Release 28.

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