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 Bde-47 safe in food and drink?

Q: Is bde-47 safe in food and drink?

Under the app's default Cautious lens, bde-47 in food and drink rates Watch: worth watching; the app would list a cleaner alternative type. 3 sourced concerns count (endocrine, emerging tier; metabolic, emerging tier; metabolic, emerging tier). This is research with sources, not medical advice.

Food processing1 use researched3 sourced claims

Where it turns up: flame retardant in fatty foods. Detox My Life researched bde-47 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	Clean	Watch	Watch	3 · 0

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 Watch

Under the default Cautious lens bde-47 in food and drink rates Watch: worth watching; the app would list a cleaner alternative type. Mainstream (consensus only) rates it Clean; Based (adds the fringe) rates it Watch. Researched 2026-09-03.

Sourced concerns (3)

EmergingEndocrineconfidence 80%

Ingested BDE-47 is linked in studies to disruption of thyroid hormone homeostasis, including decreased circulating thyroid hormone concentrations (T4) and altered gene expression related to thyroid function in animals.

Why here: BDE-47 is ingested through diet (e.g., contaminated food, breast milk) and can accumulate in the body, where it can interfere with the thyroid system.
What would have to be true: In animal studies, effects were observed at various oral doses, such as 3, 10, or 100 mg/kg/day in mice for 4 days, leading to a significant decrease in serum total thyroxine (T4) at 100 mg/kg/day. Zebrafish exposed to 1, 5, and 10 μg/L BDE-47 in water over their life cycle showed thyroid endocrine disruption. Human dietary intake can range from 26 to 150 ng/day.
The other side: Some studies on neurotoxicity did not observe alterations in serum thyroid hormones at specific doses, suggesting that other mechanisms might be at play for certain effects.

Sources the engine cites:

Life-cycle exposure to BDE-47 results in thyroid endocrine disruption to adults and offsprings of zebrafish (Danio rerio) — National Library of Medicine (2016) · regulator or public body
Developmental toxicity of the PBDE Metabolite 6-OH-BDE-47 in Zebrafish and the Potential Role of Thyroid Receptor β — National Library of Medicine (2016) · regulator or public body
Biotransformation of BDE-47 to Potentially Toxic Metabolites Is Predominantly Mediated by Human CYP2B6 — National Library of Medicine (2011) · regulator or public body
Possible mechanisms of thyroid hormone disruption in mice by BDE 47, a major polybrominated diphenyl ether congener — ToxStrategies (2008) · study
1 community or commercial page, not counted here.

EmergingMetabolicconfidence 80%

Ingested BDE-47 is associated with neurotoxicity, including oxidative stress and apoptotic cell death in brain cells, particularly in developing brains, which may lead to impaired signal transduction and altered neurodevelopment.

Why here: BDE-47 is readily absorbed after ingestion and can cross the blood-brain barrier, accumulating in brain tissues where it can exert its toxic effects.
What would have to be true: In vivo administration of BDE-47 to mice at 10 mg/kg (per os on post-natal day 10) induced oxidative stress and apoptosis in the brain. Brain concentrations in mice were in the mid-nanomolar range (approximately 690 nM in cerebellum after 10 mg/kg oral dose). Infants and toddlers have the highest body burden due to exposure through diet and dust.
The other side: While some studies show neurotoxic effects, the exact mechanisms are still being elucidated, and some studies on neurotoxicity did not observe alterations in serum thyroid hormones, suggesting direct effects on brain cells.

Sources the engine cites:

The brominated flame retardant BDE-47 causes oxidative stress and apoptotic cell death in vitro and in vivo in mice — National Library of Medicine (2015) · regulator or public body
Biotransformation of BDE-47 to Potentially Toxic Metabolites Is Predominantly Mediated by Human CYP2B6 — National Library of Medicine (2011) · regulator or public body
1 web article (leahbakst.com), linked in the app.

EmergingMetabolicconfidence 70%

Ingested BDE-47 can be metabolized in the body into hydroxylated PBDEs (OH-PBDEs), which are suggested to be more potent and potentially more toxic than the parent compound, contributing to neurodevelopmental disorders and thyroid disruption.

Why here: The body's metabolic processes transform ingested BDE-47 into these hydroxylated forms, which then exert their own toxic effects.
What would have to be true: Human cytochrome P450s (CYPs) are involved in the metabolism of BDE-47 to OH-PBDEs. In zebrafish, 6-OH-BDE-47 at concentrations like 100 nM resulted in severe developmental delays.
The other side: Not explicitly stated as a counter, but the focus is on the *metabolites* being more toxic, rather than a direct counter to BDE-47's toxicity itself.

Sources the engine cites:

Biotransformation of BDE-47 to Potentially Toxic Metabolites Is Predominantly Mediated by Human CYP2B6 — National Library of Medicine (2011) · regulator or public body
Developmental toxicity of the PBDE Metabolite 6-OH-BDE-47 in Zebrafish and the Potential Role of Thyroid Receptor β — National Library of Medicine (2016) · regulator or public body

Not researched here

The engine has no dossier for bde-47 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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