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GREENVEIL

  • food

L-isoleucine

CAS 0073-32-5 · 40/100 · High conf.

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

L-isoleucine in plain language

What it does

Used in food as a flavouring agent.

  • Flavouring agent
Is it a concern?
Moderate concern: no hazard classifications on record.

Why it's flagged

JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. L-isoleucine appears in these published regulatory listings.

  • GLOBALJECFANo safety concern at current levels of intake when used as a flavouring agentJECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.
    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.

      Year not recorded · GLOBAL JECFA listing · Read the source →

  • EFSA

    European Food Safety Authority

    No EFSA opinion on file.

Evidence & sources

No graded research studies for L-isoleucine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

1 data source

Where this comes from

  • WHO JECFA Database

    regulatory · updated 2026-10-02

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Catalog

Found in these products

Their ingredient lists include L-isoleucine; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 279 →Find products without it →