The Claim
A 6-day high-fat diet providing 68% of energy from fat induces increased fat oxidation at rest and during submaximal exercise in well-trained male cyclists, as indicated by reduced respiratory exchange ratio and elevated plasma free fatty acid concentrations, and this metabolic adaptation remains evident even after one day of high carbohydrate intake (8–10 g/kg 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.
If elite male cyclists eat a super high-fat diet for six days, their bodies get better at burning fat for fuel — even when they switch back to eating lots of carbs for a day.
See the scientific wording
A 6-day high-fat diet (68% fat energy) in well-trained male cyclists increases fat oxidation at rest and during submaximal exercise, as evidenced by reduced respiratory exchange ratio (RER) and elevated plasma free fatty acid levels, and this metabolic shift persists even after 1 day of high carbohydrate intake (8–10 g/kg).
What the research says
1 studyStudy: Fat adaptation followed by carbohydrate loading compromises high-intensity sprint performance.
The study shows that eating a high-fat diet for 6 days makes cyclists burn more fat, and this effect stays even after they eat lots of carbs for a day.
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.