What do the Clean, Low, Watch and Swap levels mean?

They are cut from a continuous concern level the app computes from the sourced claims that the chosen evidence lens shows: each claim counts its concern class, tier weight, confidence and dose relevance, combined worst-first with a decay so one serious finding outweighs many small ones, then scaled by how much of the substance reaches you in this use. Clean is below 0.35, Low below 1.1, Watch below 2.0 and Swap above that, on a 0 to 3 scale.

Is Permethrin safe in food and drink?

Q: Is permethrin safe in food and drink?

Under the app's default Cautious lens, permethrin in food and drink rates Swap: the app would put this near the top of your swap plan. 5 sourced concerns count (suspected carcinogen, consensus tier; metabolic, consensus tier; endocrine, emerging tier). 1 finding count in its favour. This is research with sources, not medical advice.

Food processing1 use researched6 sourced claims

Where it turns up: insecticide residue on fruits, vegetables. Detox My Life researched permethrin under one use, because the same substance means something different in each use. Every claim below carries its evidence tier, how sure the research is that it applies here, and the sources it cites. The level is computed by the app's own deterministic engine, so the page says exactly what the app would.

Level by use and lens

Use	Mainstream	Cautious (default)	Based	Concerns · favour · fringe
Eaten or drunk	Swap	Swap	Swap	5 · 1

Mainstream shows consensus claims only; Cautious adds emerging research; Based adds fringe claims, labelled as such. The last column counts, under Cautious, the sourced concerns, the findings in its favour and the fringe claims Based would add.

Safer swaps: the app's swap catalog has no entry tied to this ingredient yet. When you scan a product that contains it, the app suggests cleaner alternative types for that product; the swap categories list what the catalog covers today.

Eaten or drunk Swap

Under the default Cautious lens permethrin in food and drink rates Swap: the app would put this near the top of your swap plan. Mainstream (consensus only) rates it Swap; Based (adds the fringe) rates it Swap. Researched 2026-09-03.

Sourced concerns (5)

ConsensusSuspected carcinogenconfidence 90%

The U.S. EPA has classified permethrin as showing 'suggestive evidence of carcinogenic potential' by the oral route, based on findings of lung adenomas in female mice.

Why here: This classification directly addresses the potential for carcinogenicity via ingestion.
What would have to be true: Oral exposure, with effects observed in animal studies at doses causing tumors.
The other side: The International Agency for Research on Cancer (IARC) classified permethrin as Group 3, 'not classifiable as to its carcinogenicity to humans,' due to inadequate evidence.

Sources the engine cites (no regulator, review or study among them):

1 web article (orst.edu), linked in the app.

ConsensusMetabolicconfidence 90%

Ingestion of permethrin can cause acute symptoms such as sore throat, abdominal pain, nausea, and vomiting.

Why here: These are direct physiological responses to the substance being consumed.
What would have to be true: Acute ingestion of permethrin.

Sources the engine cites:

Permethrin (UK PID) - Inchem.org (2002) · regulator or public body
2 web articles (orst.edu, …), linked in the app.

EmergingEndocrineconfidence 70%

Studies suggest permethrin and its metabolites may interfere with estrogen receptors and androgen receptor function in in vitro and animal models.

Why here: Ingested permethrin is absorbed and metabolized, and these metabolites could interact with endocrine systems.
What would have to be true: Oral exposure, with effects observed in cellular and animal studies.
The other side: Other research on human cancer cell lines indicated that permethrin did not act as an antagonist or agonist for estrogens or androgens.

Sources the engine cites:

Structural Aspects of Potential Endocrine-Disrupting Activity of Stereoisomers for a Common Pesticide Permethrin against Androgen Receptor - PMC — nih.gov (2022) · regulator or public body
1 web article (orst.edu), linked in the app.

EmergingMetabolicconfidence 80%

Substantial ingestion of permethrin has been associated with systemic neurotoxic effects including headache, dizziness, impaired consciousness, muscle fasciculations, and convulsions in human case studies.

Why here: These are severe systemic effects resulting from the absorption of ingested permethrin.
What would have to be true: Substantial acute oral exposure, as seen in poisoning cases.

Sources the engine cites:

Permethrin (UK PID) - Inchem.org (2002) · regulator or public body
Acute ingestion poisoning with insecticide formulations containing the pyrethroid permethrin, xylene, and surfactant: a review of 48 cases - PubMed — nih.gov (2002) · regulator or public body

EmergingMetabolicconfidence 70%

Long-term, low-dose oral exposure to permethrin has been found to induce slight liver and kidney damage in rats, and chronic oral exposure in animals has been associated with increased liver weights.

Why here: Ingested permethrin is metabolized in the liver, and chronic exposure can lead to organ changes.
What would have to be true: Oral exposure, including doses as low as 75 mg/kg body weight/day over 90 days in rats, or chronic feeding studies in dogs and mice.
The other side: The U.S. EPA has determined a Reference Dose (RfD) of 0.25 mg/kg/day for both acute and chronic dietary exposures to permethrin, which is an estimate of the quantity of chemical that a person could be exposed to every day for the rest of their life with no appreciable risk of adverse health effects.

Sources the engine cites:

Long-term low-dose exposure of permethrin induces liver and kidney damage in rats - PMC — nih.gov (2022) · regulator or public body
Pages - Permethrin - Maryland Department of Health — maryland.gov (2000) · regulator or public body
1 web article (orst.edu), linked in the app.

In its favour (1)

ConsensusClearedconfidence 90%

The International Agency for Research on Cancer (IARC) classified permethrin as Group 3, 'not classifiable as to its carcinogenicity to humans,' due to inadequate evidence.

Why here: This classification from a major international body addresses the potential for carcinogenicity via ingestion.
What would have to be true: General human exposure, including potential ingestion.
The other side: The U.S. EPA has classified permethrin as showing 'suggestive evidence of carcinogenic potential' by the oral route, based on findings of lung adenomas in female mice.

Sources the engine cites:

Permethrin (UK PID) - Inchem.org (2002) · regulator or public body
1 web article (orst.edu), linked in the app.

Not researched here

The engine has no dossier for permethrin when cooked with heat, in cold food, as a finishing ingredient, in heated food packaging or other uses. The app researches an ingredient for the use it infers from your product, so a scan fills these in; this page only shows what has already been researched and source-verified.

This is research, not medical advice. Detox My Life shows sourced claims sorted by evidence tier. It does not diagnose, treat, or tell you to start or stop anything. Talk to a qualified professional about your health.

Scan your own. The app reads any product label with your camera, works out how you are about to use it, and researches every ingredient for that use with live sources. Every scan adds to a Detox Score for your home, where 50 is a typical home in your region, and a plan of next swaps.

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