The Claim
Women exhibit a 7.7% higher average Beverage Hydration Index (BHI) and lower urine output at 240 minutes following consumption of caffeinated energy drinks compared to men, despite consuming higher relative doses of fluid and caffeine per kilogram of body weight.
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.
After drinking caffeinated energy drinks, women retain more fluid than men, as shown by higher hydration scores and less urine produced after 240 minutes, even though women consume more fluid and caffeine relative to their body weight.
See the scientific wording
Women retain more fluid from caffeinated energy drinks than men, despite consuming higher relative doses of fluid and caffeine per kilogram of body weight, as evidenced by a 7.7% higher average Beverage Hydration Index (BHI) and lower urine output at 240 minutes.
Women's bodies retain more fluid from caffeinated drinks because their hormones increase the kidneys' ability to hold onto salt and water, which cancels out the fluid-loss effect of caffeine. Men's kidneys respond more strongly to caffeine's signal to flush out fluid, so they lose more urine.
What the research says
1 studyWomen kept more of the drink in their bodies than men, even when they drank the same amount relative to their size — their bodies handled the caffeine and fluid differently.
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.