The Claim

Sulforaphane binds directly to the human steroid and xenobiotic receptor (SXR/hPXR) and inhibits its ability to activate the expression of cytochrome P450 3A4 in human liver cells.

Source: The Dietary Isothiocyanate Sulforaphane Is an Antagonist of the Human Steroid and Xenobiotic Nuclear Receptor

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
20score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

Sulforaphane, a compound in broccoli, attaches to a specific receptor in human liver cells and reduces the activation of an enzyme that breaks down drugs and toxins.

See the scientific wording

Sulforaphane, a compound found in broccoli, binds directly to the human steroid and xenobiotic receptor (SXR/hPXR) and inhibits its ability to activate the expression of cytochrome P450 3A4, a key enzyme responsible for metabolizing many drugs and toxins in human liver cells.

Why this might work

Sulforaphane attaches to a receptor in liver cells that normally turns on a drug-breaking enzyme. When sulforaphane is bound, the receptor cannot call in the helper proteins needed to start making the enzyme, so the enzyme is not produced, and drug breakdown slows down.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: The Dietary Isothiocyanate Sulforaphane Is an Antagonist of the Human Steroid and Xenobiotic Nuclear Receptor

    Sulforaphane from broccoli sticks itself to a special receptor in liver cells and turns down the activity of an enzyme that breaks down medicines, which could help prevent unwanted drug interactions.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.