Most traditional ketchup brands are dairy-free, as the primary ingredients typically include tomatoes, vinegar, sugar, and spices. However, some specialty or gourmet ketchups may contain dairy or dairy-derived ingredients for flavor or texture. Here are a few ketchup brands that are known to have dairy in some of their products:

1. Heinz
- Products: Some specialty Heinz products, such as certain varieties of Heinz Organic Ketchup, may include dairy ingredients, particularly in flavored or gourmet versions.
2. Sir Kensington’s
- Products: Sir Kensington’s ketchups often feature gourmet flavors, and while their classic ketchup is dairy-free, some of their specialty sauces, like certain Sir Kensington’s Spicy Ketchup, might contain dairy.
3. Del Monte
- Products: While Del Monte’s traditional ketchup is generally dairy-free, some flavored or specialty versions might have dairy ingredients, so it’s essential to check the label.
4. Chick-fil-A Sauce
- Products: While not a traditional ketchup, Chick-fil-A Sauce is often used similarly. It contains dairy, so it’s important to avoid it if you’re looking for dairy-free options.
5. Some Gourmet or Specialty Ketchups
- Brands that focus on unique flavors or gourmet ingredients may include dairy. It’s crucial to read the ingredient labels carefully, as formulations can change.
Tips for Checking
- Read Labels: Always check the ingredient list for any mention of dairy or milk products, like whey or casein.
- Look for Allergen Statements: Many brands include allergen information on the packaging that indicates if the product contains dairy.
Conclusion
While the classic ketchup brands tend to be dairy-free, it’s always best to check the specific product labels, especially for gourmet or specialty ketchups that might include dairy ingredients. If you’re looking for a dairy-free ketchup, brands like Heinz and French’s have traditional versions that are safe for those avoiding dairy.