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Thyme

What the research shows

No concerns

none of the findings here link it to harm

A culinary herb of dried above-ground parts of some mint family plants.12

What research says

Studies in people

Found in some samples or products

These come from where it was grown, how it was processed or cooked, or what it was made into. They are not about the ingredient itself, so the signal does not count them.

  • Toxin levels in herbs3

    Aflatoxin B1 was found in most thyme and thyme-based products tested, sometimes above safety limits.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.

Products

The 6 most-scanned of 3,830 products on Open Food Facts that list thyme.

  • Ratatouille Carrefour BIO · 630 g 0 additives
  • ROAST CHICKEN TRADITIONAL VEGETABLE SOUP YORKSHIRE PROVENDER · 560 0 additives
  • Ravioli vegetariens Carrefour BIO · 650 g 0 additives
  • MEDITERRANEAN FALAFEL with CHICKPEAS, GARLIC & BASIL Gosh! · 171 g 1 additive
  • VERY LOW SALT ORGANIC VEGETABLE STOCK CUBES kallø · 60 g 0 additives
  • Rosemary & Sea Salt Sourdough Crackers Peter’s Yard · 90 g 0 additives

References

  1. 1thyme: ingredient taxonomy entry. Open Food Facts.
  2. 2Thyme. Wikipedia. Accessed September 30, 2026. CC BY-SA 4.0.
  3. 3Hassan HF, Koaik L, Khoury AE, Atoui A, El Obeid T, Karam L. Dietary Exposure and Risk Assessment of Mycotoxins in Thyme and Thyme-Based Products Marketed in Lebanon. Toxins (Basel). 2022;14(5). doi:10.3390/toxins14050331
  4. 4Romeu M, Rubió L, Sánchez-Martos V, et al. Virgin Olive Oil Enriched with Its Own Phenols or Complemented with Thyme Phenols Improves DNA Protection against Oxidation and Antioxidant Enzyme Activity in Hyperlipidemic Subjects. J Agric Food Chem. 2016;64(9):1879-88. doi:10.1021/acs.jafc.5b04915