Ketchup
Ketchup is a sweet, tangy tomato-based condiment made from tomato concentrate, vinegar, sugar, and spices. It contains added sugar and sodium, and provides lycopene from tomatoes — a carotenoid that is well-absorbed from processed tomato products.
Also known as: tomato ketchup, catsup, tomato sauce (informal)
Scientific & Editorial Standard: This information is synthesized from peer-reviewed databases (such as PubMed, NIH, NHS, and Mayo Clinic) and validated using multi-model cross-referencing by the Plateify Editorial Team. It is intended for educational purposes and is not medical advice. If you suspect food sensitivities, consult a healthcare provider.
Ketchup is a condiment prepared primarily from tomato concentrate, distilled vinegar, high-fructose corn syrup or sugar, salt, and spices including garlic, onion, and clove. It originated in China as a fermented fish sauce, evolved through British adaptation, and became standardized in the United States in the 19th century. Today it is widely used as a table condiment, ingredient in sauces and marinades, and component of processed foods.
A typical 1-tablespoon (17 g) serving contains approximately 4 g of carbohydrates (mostly from added sugar), 160–190 mg of sodium (varies by brand), and negligible protein or fat. Tomatoes contribute lycopene, a carotenoid with antioxidant properties. Because ketchup is made from tomato concentrate, it is actually a meaningful dietary source of lycopene, and processing increases lycopene's bioavailability compared to raw tomatoes. The acidity from vinegar and tomato can trigger symptoms in people with acid reflux or GERD.
Blood Sugar and Carbohydrate Considerations
Ketchup contains approximately 3–4 g of added sugar per tablespoon. While the overall glycemic load of a single serving is modest given the small portion size, the added sugar content can accumulate with repeated use. Those managing type 2 diabetes or prediabetes should account for ketchup's carbohydrate contribution when used in larger amounts, or choose unsweetened or low-sugar tomato-based alternatives.
Sodium Content and Hypertension Considerations
A 1-tablespoon serving provides approximately 160–190 mg of sodium depending on the brand, representing roughly 7–8% of the 2,300 mg daily limit recommended by major health agencies. Regular consumption of ketchup — particularly when used on multiple foods daily — can contribute meaningfully to total dietary sodium intake. People with hypertension or sodium-sensitive conditions should monitor cumulative intake or use low-sodium versions.
Frequently Asked Questions
Is ketchup high in sugar?
Standard ketchup contains approximately 3–4 g of added sugar per tablespoon, primarily from high-fructose corn syrup or sucrose. The sugar content is modest in a single serving, but can accumulate with regular use. The American Heart Association recommends limiting added sugar to 6–9 tsp (25–36 g) per day for most adults.
Does ketchup contain tomato's health benefits?
Ketchup does contain lycopene from tomatoes. Because ketchup is made from tomato concentrate and is heat-processed, lycopene is actually well-absorbed from ketchup — potentially better than from raw tomatoes. However, ketchup also contains added sugar and sodium, so whole tomatoes or unsweetened tomato products remain preferable as everyday sources of nutrients.
Can ketchup trigger acid reflux?
Yes, for some people. Ketchup's acidity — from both vinegar and tomato — can trigger reflux symptoms in susceptible individuals. Tomatoes are commonly listed as a reflux trigger food. People with GERD or frequent heartburn may need to limit intake or choose lower-acid alternatives.
How much sodium is in ketchup?
One tablespoon of ketchup provides approximately 160–190 mg of sodium depending on the brand, or about 7–8% of the 2,300 mg daily recommended limit. People managing hypertension should track cumulative sodium from condiments and consider low-sodium versions if using ketchup regularly.
Sources
- Sodium and Blood Pressure — American Heart Association
- Added Sugars on the Nutrition Facts Label — FDA
- Carbohydrates and Blood Sugar — Harvard T.H. Chan School of Public Health – The Nutrition Source
- Ketchup Nutritional Data — USDA FoodData Central
Educational content: This page is for general informational purposes only. Individual responses to foods vary widely. If you suspect a food allergy or sensitivity, consult a licensed dietitian, allergist, or physician before making dietary changes. Full disclaimer
Some content on this site is AI-assisted. While we strive for accuracy, information may not reflect the latest research. Always verify health information with a professional.
See how Ketchup affects you personally.
Try Plateify Free →