Natural Flavors: What They Really Are & Why to Avoid Them - Scrunchy Living

Natural Flavors: What They Really Are & Why to Avoid Them

Key Takeaways

  • "Natural flavors" is an FDA-regulated category, not a guarantee of safety — it can legally include highly processed, chemically extracted compounds, animal secretions like castoreum, and hidden additives like BHT or propylene glycol.
  • Companies are not required to disclose what's inside their "natural flavor" blend, which may contain hundreds of individual chemicals — none of which appear on the label.
  • Your safest move is to choose products where every flavor source is spelled out explicitly — look for "vanilla extract," "lemon oil," or "orange peel" instead of the catch-all "natural flavors."

Why This Matters If You're Pregnant or Feeding a Baby

You're standing in the grocery aisle, turning over a box of crackers or a pouch of baby food. The ingredient list looks... fine. No red-flag chemicals jumping out. And then you see it: natural flavors. Sounds harmless. Maybe even good.

Here's the thing: that phrase is doing a lot of quiet work on that label — and almost none of it is in your favor.

For pregnant women and new moms especially, what goes into your body (and your baby's) matters more than it ever has. Understanding what "natural flavors" actually means — legally, chemically, and practically — is one of the most useful things you can do this week. And the good news is, once you know what to look for, navigating it gets a lot easier.

What Does "Natural Flavors" Actually Mean, Legally?

The FDA defines natural flavors as flavorings derived from a natural source — plant or animal — that are used primarily to add flavor rather than nutrition. That sounds reasonable on the surface.

But here's what that definition doesn't tell you: natural flavors are often highly processed, chemically extracted, combined with synthetic solvents and preservatives, and can be made up of hundreds of individual chemical components. The ingredient "natural flavors" on your label is essentially a legal black box. A company's specific flavor formula is considered proprietary, so they are not required to disclose what's in it.

The result is that a product can carry a clean-looking ingredient list while hiding a cocktail of additives you'd never consciously choose.

SCRUNCHY MOM TIP: When you see "natural flavors" on a label, treat it like an unknown variable — not a green flag. Look for products that name every flavor source specifically, like "organic vanilla extract" or "lemon oil."

Wait — Are There Actually Beaver Secretions in My Food?

Yes, this one is real, and it has a name: castoreum (pronounced kas-TOR-ee-um).

Castoreum is a substance secreted from the castor sacs of beavers — glands located between the base of the tail and the pelvis. Beavers naturally use it to mark their territory. It has a musky, vanilla-adjacent scent, which is why the food industry has historically used it as a flavoring agent — particularly in vanilla, raspberry, and strawberry-flavored products.

Because castoreum is derived from an animal, it technically qualifies as a "natural" flavoring under FDA rules. And because flavor formulas are proprietary, a company using castoreum in their product has no legal obligation to list it as anything other than "natural flavors." Research on castoreum as a food additive has confirmed its GRAS (Generally Recognized as Safe) status with the FDA — but "safe" and "something you want to knowingly consume" are two very different things.

To be fair, castoreum is not used at high volumes in modern food production — it's expensive and difficult to harvest. But the point isn't how much of it is in your food. The point is that you have no way of knowing whether it's there at all. That's the problem.

What Else Can Hide Inside "Natural Flavors"?

Castoreum gets the headlines, but it's far from the only concern. The legality surrounding the "natural flavors" label can also conceal:

  • BHT (butylated hydroxytoluene) — a preservative associated with cancer in animal studies and identified as an endocrine disruptor, meaning it can interfere with your hormones. It commonly appears in convenience foods like instant soup, sausages, and chewing gum. The National Toxicology Program has flagged BHT for further review based on animal study data.
  • Polysorbate 80 — an emulsifier with potential links to gut microbiome disruption, according to research published in Nature.
  • Propylene glycol — a petroleum-derived solvent used as a carrier for flavor compounds. While the FDA considers it safe at low levels, it is not something most informed consumers would choose to include in their diet intentionally. The EWG rates propylene glycol as a moderate hazard when used in personal care products, and its presence as an unlabeled carrier in food-grade flavor blends raises similar transparency concerns.

These are not exotic edge cases. They are additives that can legally shelter under the "natural flavors" umbrella, appearing in products you buy every week — including organic ones.

Does "Organic" Mean the Natural Flavors Are Safe?

Not exactly. Organic products can still contain organic natural flavors — and while "organic" does impose some additional restrictions (no synthetic solvents, for example), the formula is still proprietary. You still don't know what's in it.

Organic natural flavors are a step in the right direction, but they are not the finish line. The cleaner standard is a product that lists its flavor sources explicitly, like:

  • "Organic vanilla extract"
  • "Lemon oil"
  • "Turmeric for color and flavor"

If you can read it and picture it, that's a good sign.

How to Swap: Good, Better, Best

Good: Reduce your overall intake of heavily processed and convenience foods (instant soups, flavored crackers, packaged snacks) where "natural flavors" appears near the top of the ingredient list.

Better: Choose products — organic or conventional — where flavors are specifically named. When shopping for pantry staples, Thrive Market is a useful resource: their membership model gives you access to a curated selection of clean-label foods with transparent ingredient sourcing, including grass-fed meats and minimally processed pantry items where you can filter by ingredient standards.

Best: Cook more from scratch using clearly labeled single ingredients. Fresh herbs from Organic Girl (widely available at grocery stores) make it easy to flavor food without any "natural flavor" mystery. When you're making sauces, dressings, or marinades at home, you know exactly what's in them.

If you're on a tight budget, start with swapping packaged snacks and flavored drinks first — those tend to have the most complex "natural flavor" formulations — and don't stress yet about every single pantry item.

A Note for Pregnancy and the Postpartum Period

During pregnancy, your liver's detox capacity is somewhat redirected, and your baby has no independent ability to filter chemical exposures. That's why endocrine disruptors — even at low levels — are a particular concern during this window. ACOG has noted that pregnant women should reduce exposure to potentially harmful chemicals wherever practical.

That doesn't mean panic. It means prioritizing the swaps that have the most impact per unit of effort.

If you're bottle-feeding or supplementing, the same principle applies to what touches your baby's milk. The Avent Glass Natural Response Baby Bottle is a clean choice — glass construction means no chemical leaching from plastic, and it's a straightforward swap if you're already bottle shopping.

Avent

For your kitchen setup as you start cooking more from scratch, Public Goods offers organic cotton kitchen linens — a small, functional swap that fits a minimalist, non-toxic kitchen.

Public Goods

SCRUNCHY MOM TIP: The "dirty dozen" approach works here too — you don't have to overhaul everything at once. Pick the two or three processed products your family eats most often and find a cleaner swap for those first.

Start Here This Week

If you only do one thing from this article, do this: Pick up one packaged product from your pantry that lists "natural flavors" and spend two minutes finding a cleaner alternative — one where the flavor sources are spelled out. That single replacement, repeated over time, adds up.

Good Brands to Buy

  • Thrive Market — Membership retailer with a curated clean-label selection; easy to filter for products without vague flavor additives. Great budget-stretching option.
  • Organic Girl Fresh Herbs — Organic herbs for flavoring food from scratch; no mystery ingredients, widely available.
  • Avent Glass Natural Response Baby Bottle — For bottle-feeding moms who want to avoid plastic chemical exposure alongside cleaner food choices.
  • Public Goods Kitchen Linens — Organic cotton, minimalist, non-toxic kitchen basics for the scratch-cooking transition.
  • Cascadian Farm Organic Frozen Potatoes — A clean-label frozen option with a short, readable ingredient list; no natural flavor fillers.

FAQ

Q: Is castoreum still commonly used in food today?

A: Castoreum is used far less frequently now than it was in earlier decades of food manufacturing — it's expensive, labor-intensive to harvest, and most large food companies have shifted to synthetic vanilla alternatives instead. That said, because it can legally appear under "natural flavors" with no separate disclosure required, there is genuinely no way for a consumer to confirm its presence or absence in any given product. This is not a niche loophole: the FDA's own definition of natural flavors covers animal-derived substances, which means castoreum qualifies without triggering any additional labeling requirement. If transparency matters to you — and during pregnancy it especially should — the practical move is to choose products that name every flavor source individually. Brands like Cascadian Farm and products found through Thrive Market tend to use shorter, more explicit ingredient lists where you can actually see what's doing the flavoring.

Q: Do natural flavors always contain harmful chemicals?

A: Not always — but the label itself gives you no way to know either way, and that's the core problem. A "natural flavor" could be a simple botanical extract like orange oil, or it could be a proprietary blend of dozens of compounds including solvents, emulsifiers, and preservatives. Because the formula is legally protected as a trade secret, the label offers no useful information about what's actually inside it. For pregnant women and nursing moms, that ambiguity is worth taking seriously: ACOG has specifically called out that even low-level chemical exposures during pregnancy can carry developmental risk, and the precautionary principle applies here. The most actionable response is to reduce your reliance on any product where the ingredient list contains catch-all terms. Swapping flavored packaged snacks and drinks — which tend to have the most complex natural flavor formulations — for whole-food alternatives is the highest-leverage starting point.

Q: What's the safest label language to look for instead?

A: Look for products where every flavor source is named individually — "organic vanilla extract," "lemon oil," "apple juice concentrate," "turmeric." If you can picture the ingredient as a real food or plant, that's a meaningful signal. The fewer catchall terms like "spices" or "natural flavors" on a label, the more transparent the product is likely to be. Practically speaking, the EWG's Food Scores database lets you search specific products and flags ingredient transparency concerns — it's a free tool worth bookmarking for your weekly grocery run. Fresh herbs from Organic Girl are a reliable, widely available option for flavoring food at home with zero label ambiguity.

This article is for educational purposes only and does not constitute medical advice. Always consult your healthcare provider, OB-GYN, or midwife regarding dietary choices during pregnancy and the postpartum period.

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