Ketchup Nutrition: All You Need to Know

Ketchup is a sweet-tart sauce commonly used to enhance flavor.

It’s typically made from cooked tomatoes blended with seasonings such as garlic, onion, and aromatic spices.

Ketchup pairs well with comfort foods like burgers, hot dogs, and fries.

Though often linked to fast food, ketchup’s base ingredient is nutritious — tomatoes. If you’ve ever wondered whether ketchup is good for you, you’re not alone.

This piece examines ketchup’s nutrition, potential health perks, possible drawbacks, and some alternative condiments to consider.

What is ketchup?

Recipes differ, but ketchup is built from a standard set of components: tomatoes, sugar, salt, and vinegar. That combination explains its characteristic sweet and tangy taste.

Additional spices like allspice, cloves, coriander, or even cinnamon and ginger might also be included.

As a straightforward tomato-based sauce, ketchup has a relatively simple nutrient profile. Also, because it’s usually consumed in small amounts, it isn’t a major source of essential nutrients in your diet.

One tablespoon (17 grams) of ketchup contains (1):

• Calories: 17
• Carbs: 4.5 grams
• Protein: less than 1 gram
• Fiber: less than 1 gram
• Fat: less than 1 gram
• Sugar: 7% of the Daily Value (DV)
• Sodium: 7% of the DV

Compared with other sauces, a tablespoon of ketchup has almost double the calories of mustard but under one-quarter of the calories found in mayonnaise (2, 3).

Regarding sugar, ketchup generally contains more than mayonnaise or mustard; those condiments each supply under 1% of the DV for sugar per 1-tablespoon (17-gram) portion, compared with about 7% in the same quantity of ketchup (1, 2, 3).

Summary: Ketchup is low in calories, carbohydrates, protein, and fat. However, it contains moderate amounts of added sugar and salt, which are prominent ingredients.

Ketchup health benefits

Some people label ketchup as “empty calories” because it contains sugar and sodium but not many vitamins or minerals.

Still, its primary ingredient — tomatoes — are rich in beneficial plant compounds.

Research indicates that any health advantages from ketchup are likely due to the carotenoid lycopene present in tomatoes.

Lycopene is thought to have anticancer, anti-inflammatory, and antidiabetic effects, though there is limited evidence that consuming ketchup alone produces the same outcomes (1, 4).

That said, one study linked consumption of various tomato-based foods rich in lycopene, including ketchup, to a reduced risk of gastric cancer (5).

Ketchup is actually among the more concentrated sources of lycopene. The heating involved in producing ketchup increases lycopene’s bioavailability (6).

When you eat ketchup, you may obtain some of lycopene’s benefits. Lycopene may (7):

• Serve as an antioxidant. Lycopene’s strong antioxidant activity may shield DNA and cellular proteins from oxidative stress and inflammation (4).
• Lower cancer risk. Laboratory studies suggest lycopene may help prevent prostate cancer, and observational human studies tie higher dietary lycopene from tomatoes and ketchup to a reduced risk of stomach cancer (5, 6, 8).
• Support brain health. Some studies indicate lycopene may be helpful for conditions like Alzheimer’s and Parkinson’s. Early animal research hints it might protect against cognitive decline linked to chronic disease (9, 10, 11, 12).
• Benefit heart health. Lycopene’s antioxidant effects may reduce heart disease risk. Observational studies link higher lycopene intake to lower cardiovascular risk, and animal studies show lycopene can lower blood lipids and cholesterol (13, 14, 15).
• Help reproductive health. One human study found lower blood lycopene in infertile men, and an animal trial showed oral lycopene helped treat testicular dysfunction associated with infertility (16, 17).

However, because ketchup is generally consumed in modest amounts, eating fresh or canned whole tomatoes may deliver more lycopene with fewer calories and less added sugar, plus extra nutrients.

Moreover, addressing conditions like fertility and heart disease is best done by improving overall diet quality. Ketchup’s lycopene won’t make an otherwise poor diet healthy (7, 18).

Summary: Although ketchup lacks many vitamins and minerals, it is a concentrated source of lycopene — a carotenoid antioxidant that may help reduce cancer risk, protect the heart and brain, and support male reproductive health.

Side effects

For most people, ketchup is safe when consumed in reasonable amounts and can fit into a balanced eating pattern.

That said, excessive ketchup intake can lead to minor adverse effects.

Potential concerns with ketchup include:

• Relatively high in sugar. A single tablespoon of ketchup may contain about 7% of your DV for sugar. If you frequently add 4–5 tablespoons to a meal, ketchup alone could contribute 35% or more of your daily sugar allowance (1).
• Fairly high in sodium. Most commercial ketchups contain notable amounts of salt. For salt-sensitive individuals, excess sodium intake can raise blood pressure and increase cardiovascular risk (1, 19, 20, 21).
• Acidic nature. Tomato products are quite acidic, and concentrated forms like ketchup can aggravate heartburn or acid reflux in susceptible people (22, 23, 24).
• Possible allergies. Though rare, some people may have allergies or sensitivities to ketchup. Reactions might be triggered by tomatoes or other components like vinegar, which can contain sulfites, salicylates, or traces of gluten (24, 25).

Summary: Consuming ketchup in moderation (a few tablespoons) is generally low risk. Still, if you’re monitoring sugar or salt intake, or have reflux, heartburn, or potential food allergies, you may want to cut back.

Ketchup alternatives

While ketchup can be part of a healthy diet when used sparingly, you might sometimes prefer a healthier substitute.

Many brands offer different versions of ketchup, so you can likely find one that fits your needs.

For instance, many products are marketed as:

• organic
• unsweetened
• free of high-fructose corn syrup
• low sodium
• gluten-free
• non-GMO

If you want a less processed tomato flavor, consider making ketchup at home.

Homemade ketchup lets you control the amount of sugar and salt in the recipe.

If you want lower-sugar alternatives, try condiments such as:

• salsa
• tomato chutney or jam
• hot sauce
• harissa

Summary: Healthier ketchup options are those lower in sugar and sodium, organic, or free of high-fructose corn syrup. You can make your own ketchup or swap in condiments like salsa.

The bottom line

Ketchup is a popular condiment commonly enjoyed with sandwiches, burgers, fries, and other dishes.

Because it’s tomato-based, ketchup is a source of lycopene.

Increasing lycopene intake may help reduce risks of cancer, heart disease, and other chronic illnesses.

However, some ketchups are high in added sugar and salt, and certain ingredients may irritate people with acid reflux, gluten issues, or tomato sensitivities.

To maximize benefits, limit ketchup to a few tablespoons per serving, use it alongside nutritious foods, and choose varieties lower in sugar and sodium.

Just one thing

Try this today:Want more lycopene? Besides ketchup, add more carrots, sweet potatoes, grapefruit, watermelon, apricots, and papaya to your meals (4).