Calorie and Nutritional Comparison: The Breakdown
While both mustard and ketchup are popular condiments, their nutritional profiles are surprisingly different. The primary reason ketchup is higher in calories is its ingredient list, which typically includes high fructose corn syrup or sugar. In contrast, classic yellow mustard is made from mustard seeds, vinegar, spices, and water, which results in a low-sugar, low-calorie product.
Why Ketchup Packs More Calories
Most commercially produced ketchups are sweetened to achieve their characteristic tangy-sweet flavor. This is why a single tablespoon can contain around 4 grams of sugar and about 20 calories, mainly from carbohydrates. For those monitoring their sugar intake, this can be a significant hidden source of added sugars throughout the day. Some brands may use high-fructose corn syrup, another calorie-dense sweetener.
The Low-Calorie Profile of Mustard
Mustard, especially the standard yellow variety, is typically much lower in calories. A tablespoon usually contains only 5 to 10 calories and virtually no sugar. This makes it a much more diet-friendly option. Other mustard varieties, like Dijon or whole grain, also maintain a low-calorie count, though honey mustard can be a notable exception due to the added sugar from honey.
What About Other Nutrients?
Beyond calories, there are other nutritional differences to consider. While neither condiment is a powerhouse of micronutrients when consumed in typical serving sizes, they each have minor contributions. Ketchup, being tomato-based, contains lycopene, a powerful antioxidant. However, you would need to consume far more than a typical serving to get a significant health benefit. Mustard seeds contain some beneficial minerals and omega-3 fatty acids, but again, the quantity consumed is usually too small to be a primary source.
The Bottom Line for Healthy Eating
For those watching their calorie and sugar intake, the choice is clear: mustard is the better option. It offers a flavor boost with a fraction of the calories and sugar found in ketchup. This is particularly relevant for those who use condiments liberally, such as on burgers, sandwiches, and hot dogs.
Finding a Balance
Making mindful choices about condiments can contribute to a healthier diet without sacrificing flavor. If you enjoy ketchup, consider using a smaller amount or exploring sugar-free or low-sugar varieties that are now widely available. Some brands use alternative sweeteners or rely on the natural sweetness of tomatoes to reduce the calorie count. Another strategy is to incorporate more versatile and low-calorie condiments, like hot sauce or a vinegar-based sauce, to add a different kind of flavor. The key is moderation and being aware of the ingredients in the products you use regularly.
Comparison Table: Mustard vs. Ketchup (per 1 tbsp)
| Nutrient | Yellow Mustard (approx.) | Regular Ketchup (approx.) | 
|---|---|---|
| Calories | 5-10 | 15-20 | 
| Sugar | <1g | 3-4g | 
| Sodium | ~166mg | ~150-190mg | 
| Fat | <1g | <1g | 
| Protein | <1g | <1g | 
Conclusion: A Clear Winner for Calorie Counters
To definitively answer which has more calories, mustard or ketchup, the data points to ketchup. Its higher sugar content makes it the more caloric option on a tablespoon-for-tablespoon basis. While neither condiment is particularly high in calories in a small serving, the difference is significant for those who use them regularly or in larger quantities. Choosing mustard is an easy way to reduce hidden sugars and calories from your diet. For ketchup fans, opting for a low-sugar version or simply using less can help maintain a healthier nutritional balance. Understanding these simple facts empowers you to make informed decisions about the condiments you use every day.
Visit Healthline for more detailed nutrition information on ketchup.