The Short Answer
Yes, and the levels are often concerning.
Comprehensive testing by Consumer Reports found that roughly one-third of all dried herbs and spices contain high enough levels of arsenic, lead, and cadmium to pose a health risk, especially to children.
The problem isn't just random contaminationāit's concentrated in specific spices. Oregano and thyme are the worst offenders, with nearly every brand tested showing high levels. Cinnamon is currently in the spotlight due to massive recalls (2024-2025) involving lead contamination in ground cinnamon and applesauce products.
Don't trust the \"Organic\" label to save you. Organic standards regulate pesticides, not heavy metals. In many tests, organic brands performed just as poorly as conventional ones.
Why This Matters
Heavy metals are neurotoxins.
They accumulate in the body over time. There is no safe level of lead for children, as it can permanently affect brain development, lower IQ, and cause behavioral issues. In adults, long-term exposure can damage the kidneys, immune system, and reproductive health.
Spices are concentrated.
You might think a sprinkle of cinnamon doesn't matter. But because spices are dried and concentrated, the heavy metals in the soil (or added during processing) are also concentrated. If you cook daily with contaminated turmeric or oregano, your cumulative exposure can be significant.
Adulteration is real.
Itās not just bad soil. In some cases, lead is intentionally added to spices like turmeric and paprika to make the color brighter and add weight (which increases the price). The 2024 cinnamon recalls highlighted how supply chains can be easily compromised.
The "Dirty 5" Spices
If you only change how you buy five spices, make it these. They consistently test with the highest heavy metal loads.
- Oregano ā High Risk. Almost every brand tested by Consumer Reports had concerning levels.
- Thyme ā High Risk. Like oregano, it absorbs heavy metals from the soil easily.
- Cinnamon ā High Risk. Subject to massive recent recalls. Lead In Cinnamon
- Turmeric ā Moderate/High Risk. Often adulterated with lead chromate for color. Lead In Turmeric
- Ginger ā Moderate Risk. Root vegetables absorb contaminants from the soil more readily.
What to Look For
Green Flags:
- Whole Spices: Buying whole nutmeg, peppercorns, or cinnamon sticks reduces the risk of adulteration (it's hard to fake a whole stick) and contamination from grinding machinery. Whole Vs Ground Spices
- Third-Party Testing: Look for brands that explicitly state they test every batch for heavy metals (not just "periodic" testing).
- Domestic Origins: Oregano grown in the US or EU often has lower lead levels than imported varieties, though this isn't a guarantee.
Red Flags:
- "Packed In" Labels: A label saying "Packed in USA" usually means the spice was grown in a country with loose regulations and merely bottled here.
- Vibrant Colors in Cheap Brands: If a cheap turmeric is glowing neon yellow, be suspicious.
- Bulk/Dollar Store Spices: The recent cinnamon recalls disproportionately affected value brands sold at discount retailers.
The Best Options
The only way to be 100% safe with high-risk herbs like oregano and thyme is to grow them yourself. For everything else, transparency is key.
| Brand | Verdict | Why |
|---|---|---|
| Diaspora Co. | ā Recommended | Tests every single batch; publishes transparency reports. Expensive but safe. |
| Burlap & Barrel | ā Recommended | Single-origin sourcing removes middlemen; tests every lot for lead/arsenic. |
| Simply Organic | ā ļø Acceptable | Better than generic, but mixed results. Their Basil and Ginger tested clean; others did not. |
| McCormick | ā ļø Caution | Claim high safety standards, but generic supply chains make them vulnerable. |
| Great Value / Badia | š« Avoid | Frequently appear on "high concern" lists and recent recall lists. |
The Bottom Line
1. Grow your own herbs. Oregano, thyme, and basil are easy to grow on a windowsill. This is the only way to guarantee they are lead-free.
2. Buy whole spices. Switch to whole cumin seeds, cinnamon sticks, and peppercorns. Grind them yourself with a mortar and pestle or cheap coffee grinder.
3. Check your cinnamon. If you have ground cinnamon from a discount brand (Dollar Tree, etc.) purchased in 2024 or 2025, throw it out. Check the FDA recall list immediately.
FAQ
Does cooking eliminate heavy metals?
No. Heavy metals like lead and arsenic are elements; they cannot be destroyed by heat. Cooking concentrates them further as moisture evaporates.
Is organic safer?
Generally, no. Organic certification prohibits synthetic pesticides but does not mandate heavy metal testing. Soil in organic fields can still be contaminated with old lead paint or industrial runoff.
Why is there lead in my spices?
It comes from two sources: contaminated soil (plants absorb it through roots) and processing (dirty machinery or intentional adulteration to add weight/color).
References (3)
- 1. mamavation.com
- 2. ucanr.edu
- 3. fda.gov