6
User score
Mostly negative0% positive0% mixed33% negative67% unclear
Of reports that state an outcome, 0% are positive.
Clinical research
Research pending
What Grapefruit does, according to users
Of the people who reported each effect, the share who said it got better.
No specific effects reported yet.
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for Grapefruit is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
avoidas reported
Reported side effects
How often each side effect came up across all reports.
amphetamine toxicity ×1
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Grapefruit juice consumption decreases caffeine clearance by 23% and prolongs half-life by 31%”
“Grapefruit”
“Notify your provder if you eat a lot of grapefruit...can cause normal doses of drugs to become toxic, or even lethal levels”
More other
NSI-189
Other · 61 reports
87% report better mood
Mixed
Eggs
Other · 39 reports
100% report better mood
Mostly positive
Blackout Curtains
Other · 7 reports
100% report better sleep
Mostly positive
Sleep Mask
Other · 10 reports
89% report better sleep
Mostly positive
Sunscreen
Other · 26 reports
100% report better skin & hair
Mostly positive
Sardines
Other · 29 reports
100% report better energy
Mostly positive
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate