“Strong” = several concordant meta-analyses or systematic reviews. “Moderate” = one synthesis, or several controlled trials. “Limited” = early trials only. The rating is about the quality of the studies, not about how useful the supplement is.
Red pigment found in tomatoes. It offers slight UV skin protection and slightly lowers systolic blood pressure in certain meta-analyses, but the largest ones find nothing on the heart, and nothing on PSA overall.
Pregnancy: in a trial of 159 pregnant women, 2 mg of lycopene per day did not prevent pre-eclampsia, and the lycopene group had significantly more premature births and low birth weight babies. Do not take it during pregnancy. Prostate cancer: lycopene does not replace any treatment. Two meta-analyses of six trials find no effect on PSA overall (an effect only when baseline PSA reaches 6.5 µg/L or more), and the phase II trial that saw smaller tumors involved only 26 men. Also worth knowing: the largest meta-analysis (34 studies) finds no effect on lipids, blood glucose, blood pressure, inflammation or weight, and another sees nothing on blood pressure or lipids, even in at-risk individuals. Positive results on blood pressure mainly come from tomato extracts. On mental health, a review of six trials finds no effect.
8 to 30 mg per day in trials; more than 12 mg per day for the effect on systolic blood pressure.
In trained athletes, 30 mg of pure lycopene changed nothing regarding blood fat oxidation after intense exercise. The same dose of lycopene, provided by tomato powder, reduced it: the rest of the tomato appears to matter just as much as the lycopene.
This systematic review and meta-analysis examined the association between lycopene supplementation and male reproductive health. Based on four clinical studies, lycopene supplementation significantly improved sperm concentration and non-progressive motility. No statistically significant effect was observed on other parameters such as total motility, morphology, or DNA damage.
Viña I, Viña JR. — International journal of molecular sciences (2025) — View the source study
For information only: not a substitute for medical advice. Dietary supplements are not a replacement for a varied, balanced diet. Learn more