When you see “spice” or “spices” on a food label, it refers to any aromatic plant-based substance used for seasoning rather than nutrition. The term is a legally defined category under FDA regulations, and manufacturers are allowed to use it as a catch-all instead of listing each individual spice by name. That’s why it can feel vague, and for people with allergies or dietary restrictions, it raises real questions about what’s actually in the product.
The FDA’s Legal Definition
Under federal labeling law (21 CFR 101.22), a “spice” must meet several criteria. It has to be a plant-derived aromatic substance in whole, broken, or ground form. Its primary purpose in the food must be seasoning, not nutrition. It must be “true to name,” meaning it’s actually what it claims to be. And critically, no portion of its essential oils or flavoring compounds can have been removed. If a manufacturer extracts the oils from a spice before adding it to a product, what remains no longer qualifies as a “spice” on the label.
The regulation includes a specific list of substances that count: allspice, anise, basil, bay leaves, caraway seed, cardamom, celery seed, chervil, cinnamon, cloves, coriander, cumin, dill seed, fennel seed, fenugreek, ginger, horseradish, mace, marjoram, mustard flour, nutmeg, oregano, paprika, parsley, black pepper, white pepper, red pepper, rosemary, saffron, sage, savory, star anise, tarragon, thyme, and turmeric. Any of these can be hiding behind the word “spices” on your ingredient list.
What Can’t Be Listed as “Spices”
Some ingredients you might think of as spices are specifically excluded from the catch-all term. Onions, garlic, and celery have been “traditionally regarded as foods” rather than seasonings, so they must be listed by name. Salt is also not a spice under the regulation. If a product contains garlic powder, for instance, the label has to say “garlic powder,” not just “spices.”
This distinction matters because it draws a line between ingredients used primarily to flavor food and ingredients that also serve a nutritional role. The rule essentially says: if people eat it as a food on its own, it needs its own spot on the label.
Spices vs. Natural Flavors
You’ll sometimes see “natural flavors” alongside or instead of “spices,” and the two terms mean different things. A spice is the whole, broken, or ground plant material itself. A natural flavor is something that’s been extracted or processed from a natural source, including spices, fruits, vegetables, meat, dairy, yeast, bark, or roots. The extraction methods can include distillation, roasting, or enzyme processing.
So if a manufacturer grinds up black pepper and adds it to a product, that’s a spice. If they extract the essential oil from black pepper and add that instead, it becomes a natural flavor. The source material might be the same, but the processing determines which label term applies. On meat and poultry products regulated by the USDA, the rules are slightly more flexible: spices, spice extracts, essential oils, and even onion and garlic powder can all be declared as “natural flavors” or “flavorings.”
Why This Matters for Allergies
The biggest concern with “spices” as a blanket term is that it can obscure ingredients some people react to. Mustard flour, for example, is on the FDA’s approved spice list and can legally be hidden behind the word “spices.” Mustard is a recognized allergen in many countries, though it is not currently one of the nine major allergens that U.S. federal law requires to be declared by name. Those nine are milk, eggs, fish, crustacean shellfish, tree nuts, wheat, peanuts, soybeans, and sesame.
If a spice also happens to be one of those nine major allergens, it must be called out specifically, either in the ingredient list or in a separate “Contains” statement. But for anything outside that list, manufacturers have no obligation to specify which spices they used. If you have a known sensitivity to something like mustard, fenugreek, or celery seed, the word “spices” on a label won’t tell you whether it’s safe.
When Spices Must Be Named
There are situations where a spice can’t hide behind the generic term. If a spice is being used primarily for color rather than flavor, it has to be declared by its specific name. Paprika, turmeric, and saffron are the most common examples. A product that uses paprika to give food a reddish tint must say “paprika” on the label rather than just listing “spices.” The reasoning is straightforward: color additives have their own set of labeling rules, and consumers should know what’s giving their food its appearance.
Spices also need to be individually named if they’re being used in a quantity large enough that their function shifts from seasoning to something more substantial. A spice blend where one ingredient dominates the formula might require specific disclosure, depending on how the manufacturer characterizes its role in the product.
How to Get More Information
If you need to know exactly which spices are in a product, your best option is contacting the manufacturer directly. Many companies will disclose their spice blends to consumers who ask, especially when the question involves an allergy. Some brands voluntarily list individual spices even when they’re not required to, and “clean label” products increasingly spell out every ingredient by name.
For meat and poultry products, keep in mind that the USDA’s labeling rules allow even more flexibility than the FDA’s. Ingredients like garlic powder and onion powder, which would need to be named on an FDA-regulated product, can be folded into “natural flavors” on a package of deli meat or frozen chicken. If you’re avoiding specific ingredients, USDA-regulated products deserve extra scrutiny.