Relish is low in calories, with a tablespoon of sweet relish coming in at about 20 calories. But calories aren’t the full picture. Most commercial relish is high in sodium, contains added sugars, and includes artificial additives that make it more of a condiment to use sparingly than a health food. Whether relish works for you depends on the type you choose and how much you use.
What’s Actually in a Tablespoon
A single tablespoon of sweet pickle relish contains roughly 20 calories and 2.4 grams of sugar. That sounds harmless, and for most people a tablespoon here and there is fine. The problem is that relish is rarely eaten in isolation, and servings add up quickly at a cookout or on a sandwich.
Sodium is the bigger concern. A full cup of sweet pickle relish packs nearly 2,000 milligrams of sodium, which is 86% of the recommended daily limit. Scale that back to a realistic serving of a few tablespoons and you’re still looking at a meaningful chunk of your daily sodium budget, especially if the relish is going on a hot dog that’s already loaded with salt.
Sweet Relish vs. Dill Relish
Sweet and dill relish are not nutritionally equal. Sweet relish contains more sugar and more carbohydrates, which matters if you’re watching blood sugar. Dill relish typically has 4 to 6 grams of carbs per serving compared to 15 to 20 grams for sweet varieties, and its sugar content runs 2 to 4 grams versus 12 to 18 grams in sweeter options. For blood sugar stability, dill relish is the better choice. Sweet relish has a higher glycemic impact and can cause a more noticeable glucose spike, particularly in larger amounts.
If you’re managing diabetes or prediabetes, unsweetened dill-based relish is the safer pick. Sweet relish behaves more like a sugary condiment than a vegetable-based topping.
What’s in Commercial Brands
A look at the ingredient list of a major brand like Heinz Sweet Relish reveals more than just cucumbers and vinegar. The ingredients include high fructose corn syrup, potassium sorbate, sodium benzoate, aluminum sulfate, polysorbate 80, artificial flavors, and food dyes FD&C Yellow 5 and Blue 1. These additives are used for color, texture, and shelf life, not nutrition.
High fructose corn syrup is the second ingredient, meaning it’s present in a greater quantity than vinegar or salt. Yellow 5 is a synthetic dye that some people are sensitive to, and sodium benzoate is a preservative that has drawn scrutiny in combination with certain other ingredients. None of these are dangerous in small amounts for most people, but they’re worth knowing about if you’re trying to eat more whole foods or reduce processed ingredients in your diet.
The Probiotic Question
Fermented foods like sauerkraut and kimchi are known for supporting gut health because they contain live beneficial bacteria. Relish is made from cucumbers, which can be fermented, so it’s natural to wonder if relish offers the same benefit. It almost certainly doesn’t, at least not the kind you buy at a grocery store.
Commercial relish is pickled in vinegar, not fermented through natural bacterial activity. And even if fermentation were involved earlier in the process, the heating and sterilization that happens during canning kills off any live cultures. Store-bought pickled foods, including anything labeled “quick-pickled,” do not contain probiotics. If you want gut health benefits from a relish-like food, you’d need to make your own using a traditional fermentation method, letting cucumbers sit in a saltwater brine until natural bacteria develop. That’s a different product from what’s on most grocery shelves.
Vinegar Offers Some Benefits
The vinegar in relish does contribute something useful. The acetic acid in vinegar has been linked in animal and human studies to reduced belly fat, improved insulin sensitivity, and lower cholesterol. Some research suggests fruit-based vinegar drinks may help with blood pressure.
That said, the amount of vinegar in a tablespoon of relish is small. You’d need to consume vinegar in much larger, more consistent quantities to see those effects, and doing so comes with its own risks. Continuous consumption of vinegar in large amounts can irritate the digestive tract. Relish isn’t a practical way to get meaningful vinegar benefits, but it’s a small plus compared to other condiments that offer nothing.
Making a Healthier Version at Home
Homemade relish gives you control over the three things that make commercial relish problematic: sodium, sugar, and additives. You can chop cucumbers, peppers, and onions, then pickle them in vinegar with spices like dill, coriander, and peppercorns. Using a sugar substitute or simply skipping sweetener altogether drops the sugar content dramatically. The American Diabetes Association publishes pickle recipes that bring sodium down to essentially zero by omitting salt or using minimal amounts.
A homemade dill relish made with fresh cucumbers, vinegar, garlic, and herbs is genuinely a low-calorie, low-sugar condiment with trace vitamins from the vegetables. It won’t transform your health, but it’s a clean way to add flavor without the baggage of high fructose corn syrup and synthetic dyes. If you ferment it naturally in a saltwater brine instead of using vinegar, you’ll also get the probiotic benefits that commercial versions lack.
The Bottom Line on Portions
Relish in small amounts is not going to harm most people. A tablespoon on a hot dog at a summer cookout is 20 calories and a manageable amount of sodium. The issue arises with frequency and volume. If relish is a daily condiment and you’re generous with portions, the sodium and sugar accumulate in ways that matter, particularly for people with high blood pressure or blood sugar concerns.
Choosing dill relish over sweet relish cuts sugar significantly. Choosing a brand without high fructose corn syrup and artificial dyes, or making your own, cuts out the most questionable ingredients. Relish is not a health food, but with the right choices it’s a reasonable condiment that doesn’t need to be avoided.