Ketchup has 101 kcal and 22.8 g sugar per 100 g. A typical tablespoon (15 g) adds ~15.2 kcal and ~3 g sugar — individually small but easy to underlog across meals. Condiments are omitted from food logs 1–80% of the time (Whitton et al., Adv Nutr 2022).
How should I track Ketchup?
Small amounts of Ketchup add up faster than most people realize. A systematic review (Whitton et al., Adv Nutr 2022) found that condiments are among the most frequently omitted items in food logs — skipped 1–80% of the time. A tablespoon of mayo or dressing can add 50–100 calories, and most people use two or three tablespoons without measuring. The fix is simple: keep a teaspoon or scale near your plate and measure once. Sauces and dressings are often the hidden reason a "healthy" salad ends up at 600+ calories.