Watermelon
Evidence status
Limited evidence to recommend for any consumer outcome yet.
12 papers · 1 claim · 49 outcomes scored
Outcomes
What watermelon actually does, by outcome
Each row is one outcome with effect size, evidence base, the dose that worked in trials, and time to first effect. Magnitude tiers come from native-unit MCID where available, Cohen's d otherwise.
Outcome Effect size Evidence Dose Weeks Rank
| Outcome | Effect | Evidence | Dose | Weeks | Rank |
|---|---|---|---|---|---|
| Improve blood vessel relaxation Not enough research | | 2 RCTs n=— | 90–980 g | 2–4 wk | — |
Risk profile
Adverse events and known drug interactions
Safety events
skin rash mild
Sources
- 1. Wild Watermelon-Extracted Juice Ingestion Reduces Peripheral Arterial Stiffness with an Increase in Nitric Oxide Production: A Randomized Crossover Pilot Study. (2022) ↑
- 2. Dose-Response Effect of Watermelon Consumption on Ambulatory Blood Pressure in Adults with Elevated Blood Pressure: A Randomized Controlled Pilot Trial. (2025) ↑
- 3. Daily 100% watermelon juice consumption and vascular function among postmenopausal women: A randomized controlled trial. (2021) ↑
- 4. Effects of Fresh Watermelon Consumption on the Acute Satiety Response and Cardiometabolic Risk Factors in Overweight and Obese Adults. (2019) ↑
- 5. Effects of blenderized watermelon consumption on satiety and postprandial glucose in overweight and obese adolescents. (2025) ↑
- 6. 100% Watermelon Juice as a Food-First Intervention to Improve Cognitive Function: Ancillary Findings from a Randomized Controlled Trial. (2021) ↑
- 7. Watermelon and dietary advice compared to dietary advice alone following hospitalization for hyperemesis gravidarum: a randomized controlled trial. (2023) ↑
- 8. Effects of L-citrulline supplementation and watermelon intake on arterial stiffness and endothelial function in middle-aged and older adults: a systematic review and meta-analysis of randomized controlled trials. (2025) ↑
- 9. The Effects of Watermelon Juice on Muscle Hypertrophy, Exercise Performance, and Muscle Soreness in Non-Athlete Men Undergoing Endurance Training: A Randomized Controlled Trial. (2025) ↑
- 10. Variation of Serum Lycopene in Response to 100% Watermelon Juice: An Exploratory Analysis of Genetic Variants in a Randomized Controlled Crossover Study. (2020) ↑
Generated August 14, 2026
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