"Natural flavors"
"natural flavoring" · "flavor" · "flavor blend"
A regulatory term that legally covers hundreds of substances — most extracted from plants or animals, but heavily processed through industrial methods. The cleanest-sounding ingredient on the label is also the least transparent.
Why we flag it
The FDA defines "natural flavor" as any substance whose flavor comes from a plant, animal, or microbial source — including extracts, essential oils, distillates, hydrolysates, and "products of roasting, heating, or enzymolysis." That means a "natural flavor" can be the result of dozens of chemical reactions performed in a flavor lab, including solvents, emulsifiers, and preservatives that don't have to appear on the ingredient list as long as they're considered "incidental."
The flavor itself is rarely the problem — vanillin from corn is chemically the same as vanillin from a vanilla bean. The flag is about transparency. When you read "natural flavors," you can't tell whether the product contains five ingredients or seventy-five, and people with allergies (especially to dairy, soy, or specific plants) get no useful information from the label.
Where you'll find them
Almost everywhere — "natural flavors" is now the fourth most common ingredient in U.S. processed food, after salt, water, and sugar:
- Flavored sparkling waters, sodas, and tea drinks
- Yogurts, ice cream, flavored milk and plant milks
- Protein powders, protein bars, and meal-replacement shakes
- Salad dressings, marinades, condiments
- Snack bars, cereals, granola
- Even "organic" and "all natural" branded products
- Pet food, especially treats marketed as "natural"
The signal is the ingredient itself — those exact words, with no further breakdown. Sometimes paired with "and other natural flavors" when the manufacturer wants even more flexibility.
What to look for instead
The cleanest products are flavored by ingredients you can read:
- Named, specific extracts — "vanilla extract," "lemon oil," "real strawberry juice"
- Real fruit and vegetable purées instead of "natural strawberry flavor"
- Herbs and spices listed by name — "ginger root, turmeric, black pepper"
- Short, recognizable ingredient lists — if you can't pronounce something, the "natural flavors" line is usually the next red flag
- Unflavored versions — plain yogurt, plain sparkling water, plain protein powder, and sweeten or flavor them yourself
USDA Organic certification limits "natural flavors" to those without synthetic solvents or carriers, but doesn't ban the term outright. The most reliable label signal is short ingredient lists with everything named explicitly.