Sweetened Ketchup

Sweetened Ketchup

Ketchup is a sauce made from concentrated tomato paste, sugar, vinegar, salt and spices. The criticism of it is mostly justified — it does contain a fair amount of added sugar and sodium — but there is one fact that is almost always left out of the discussion: it is a better source of lycopene than fresh tomato.

The practical question about it isn’t “healthy or not” but how much — and in that it differs from most processed foods.

Nutrition facts

The number to remember: a tablespoon of ketchup contains about 3.7 grams of sugar — close to a full teaspoon. In other words, about 25% of the product is sugar, a ratio similar to a soda. The decisive difference is that ketchup is consumed by the tablespoon, not by the glass.

Lycopene — the side nobody mentions

Ketchup contains 5-7 times as much lycopene as fresh tomato (about 2,570 mcg per 100 grams), for two reasons that work together:

1. Concentration. Ketchup is made from concentrated tomato paste — many more tomatoes per given weight.
2. Bioavailability. In fresh tomato, lycopene is locked inside the cell wall. Cooking breaks down the wall and releases it, and in the presence of fat its absorption rises significantly. This is why cooked tomato sauce is a better source of lycopene than tomato salad.

Lycopene is an antioxidant carotenoid that has been studied in connection with cardiovascular health and prostate cancer. The observational studies that showed a link between eating cooked tomato products and lower risk included ketchup and pasta sauce — not just fresh tomatoes.

This is not a justification for eating more ketchup; it is the reason a tablespoon or two isn’t “empty calories” in the full sense.

Downsides

• Added sugar: 21-22 grams per 100 grams. The problem isn’t a single tablespoon but the accumulation — many children and adults use 3-5 tablespoons per serving, meaning 11-19 grams of sugar, which is almost half the recommended daily cap on added sugar (25-36 grams).
• Sodium: 160-190 mg per tablespoon. Three tablespoons come to almost 600 mg — a quarter of the daily allowance.
• High-fructose corn syrup in some brands (mainly American ones). The evidence doesn’t support it being more harmful than regular sugar in the same amount, but it is cheaper and so encourages more generous use. See corn syrup.
• It boosts consumption of other foods: ketchup’s practical role is to make fries, sausages and burgers tastier. Its indirect effect on diet is greater than its direct effect.
• Acidity and enamel: the low pH (3.5-3.9) is relevant with very frequent consumption.

Benefits

• Bioavailable lycopene in high amounts, as detailed above.
• Low in fat and calories: 17 calories per tablespoon — less than most sauces. Mayonnaise provides about 90 calories per tablespoon, meaning five times as much.
• Potassium in moderate amounts.
• It increases vegetable intake in children — a real practical advantage worth considering. A child who eats roasted vegetables with ketchup is eating vegetables.

Practical choices

• Reduced-sugar ketchup usually contains 1-1.5 grams of sugar per tablespoon instead of 3.7. Some are sweetened with sucralose or stevia, and their taste is close enough to be a real substitute.
• Read the sodium — the gaps between brands reach about 40%.
• Measure, don’t pour. A measured tablespoon on the side of the plate instead of free pouring changes the actual amount by a factor of two or three.
• Concentrated tomato paste without sugar and salt provides the lycopene with almost none of the downsides, and works well in cooking.
• Homemade ketchup: tomato paste, vinegar, a little honey and spices — full control over the sugar and salt.

Summary

A tablespoon of ketchup contains 17 calories, almost a teaspoon of sugar and 160-190 mg of sodium — and alongside them about 2,400 mcg of lycopene, with better bioavailability than fresh tomato. At a tablespoon or two it is not a nutritional problem and even contributes antioxidants; the problem starts with free use of 4-5 tablespoons, and mainly with the way it makes fried and processed foods easier to eat in quantity. If you want to improve: reduced-sugar ketchup and a measured tablespoon instead of pouring.