The Claim
A daily dose of approximately 40 mg of 2-phenethyl isothiocyanate (PEITC) from freeze-dried watercress increases urinary mercapturic acid biomarkers to levels comparable to those observed after two weeks of consumption within one week, indicating enhanced detoxification of environmental carcinogens.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Consuming 40 mg of 2-phenethyl isothiocyanate from freeze-dried watercress each day for one week results in urinary biomarker levels that match those seen after two weeks of consumption, indicating faster detoxification of environmental carcinogens.
See the scientific wording
A daily dose of approximately 40 mg of 2-phenethyl isothiocyanate (PEITC) from freeze-dried watercress significantly enhances detoxification of environmental carcinogens within one week, as evidenced by increases in urinary mercapturic acid biomarkers comparable to those observed after two weeks of consumption.
A compound in watercress enters the body and changes a protein that normally holds back a master switch for detox genes. This switch turns on genes that make enzymes that attach a protective molecule to harmful chemicals from the environment. These tagged chemicals are then processed into waste products that leave the body through urine.
What the research says
1 studyDrinking a watercress supplement daily for a week helped people’s bodies flush out harmful chemicals faster, and the effect was already strong—similar to what happened after two weeks, even though the study didn’t measure exactly at one week.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.