The Claim

In non-athlete men undergoing 8 weeks of endurance training, daily consumption of 710 mL of watermelon juice has no significant effect on exercise strength or endurance compared to a calorie-matched placebo.

Source: The Effects of Watermelon Juice on Muscle Hypertrophy, Exercise Performance, and Muscle Soreness in Non‐Athlete Men Undergoing Endurance Training: A Randomized Controlled Trial

What the research says

Supports is higher

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

Supports
74score
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.

Cause and effect
1 study reviewed
In plain English

In non-athlete men doing 8 weeks of endurance training, drinking 710 mL of watermelon juice every day does not change their exercise strength or endurance compared to a placebo drink with the same calories.

See the scientific wording

In non-athlete men undergoing 8 weeks of endurance training, daily consumption of 710 mL of watermelon juice shows no significant effect on exercise strength or endurance compared to a calorie-matched placebo.

Why this might work

Watermelon juice provides a compound that the body turns into a signal that opens blood vessels and removes a fatigue-causing waste product. This helps muscles recover faster and grow bigger after exercise, but it does not make the muscles stronger or let a person exercise longer.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: The Effects of Watermelon Juice on Muscle Hypertrophy, Exercise Performance, and Muscle Soreness in Non‐Athlete Men Undergoing Endurance Training: A Randomized Controlled Trial

    The study found that drinking watermelon juice before workouts didn’t help men lift more weight or exercise longer than drinking a fake juice with the same calories. So, the juice didn’t improve strength or endurance, just like the claim says.

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.