FitProven
Fitness Claims
Request a claimHigher protein intake increases muscle growth
100% Strongly SupportedThe claim is that consuming higher amounts of dietary protein (typically 1.6-2.2 g/kg/day) leads to greater increases in muscle mass during ...
Electrolyte drinks hydrate better than plain water
74.8% SupportedElectrolyte drinks (sports drinks, oral rehydration solutions, and powdered mixes such as LMNT or Liquid I.V.) are marketed on the premise t...
Large calorie deficits cause more muscle loss than moderate ones
58.4% Mixed EvidenceThe standard advice against "crash dieting" holds that the size of an energy deficit determines how much of the resulting weight loss comes ...
Intermittent fasting burns more fat than regular eating patterns
29.1% Weakly SupportedIntermittent fasting (IF) protocols such as 16:8 or alternate-day fasting have surged in popularity as fat loss strategies. The claim is tha...
The anabolic window requires protein within 30 minutes post-workout
20.5% Weakly SupportedThe "anabolic window" theory claims that consuming protein within a narrow window (typically 30-60 minutes) after resistance exercise is cri...
Continuous glucose monitors improve health outcomes in people without diabetes
19% Not SupportedOver-the-counter continuous glucose monitors (Stelo, Lingo, Levels) are marketed to people without diabetes on the premise that seeing your ...
Seed oils are harmful to health
17.8% Not Supported"Seed oils" — soybean, sunflower, corn, canola, safflower — are the main dietary source of linoleic acid, an omega-6 fat. The claim, as popu...