The Claim
In well-trained male cyclists, a 6-day high-fat diet providing 68% of energy from fat, followed by 1 day of carbohydrate loading, does not impair overall performance during a 100-km cycling time trial, with no statistically significant difference in completion time compared to a high-carbohydrate diet followed by the same carbohydrate loading protocol.
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.
If a male cyclist eats a super high-fat diet for 6 days and then loads up on carbs for 1 day, it won’t slow them down in a 100-km race compared to eating lots of carbs all along.
See the scientific wording
In well-trained male cyclists, a 6-day high-fat diet (68% fat energy) followed by 1 day of carbohydrate loading does not impair overall 100-km cycling time-trial performance, with no statistically significant difference in completion time compared to a high-carbohydrate diet followed by the same carbohydrate loading.
What the research says
1 studyStudy: Fat adaptation followed by carbohydrate loading compromises high-intensity sprint performance.
The study found that cyclists on a high-fat diet for 6 days, then switching to carbs for one day, performed just as well in a 100-km time trial as those on a high-carb diet. Their total time didn't change, even though short bursts of speed were worse.
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.