The Claim
In elite race walkers undergoing 3 weeks of intensified training, a high-carbohydrate diet (8.6 g/kg/day) and a periodized carbohydrate availability diet are associated with a 5.3–6.6% improvement in 10 km race walk performance, while a ketogenic low-carbohydrate, high-fat diet is associated with no performance improvement (−1.6%, 90% CI: −8.5, 5.3%).
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.
Elite race walkers who eat lots of carbs or time their carb intake during intense training get about 5-6% faster in a 10 km race, but those on a keto diet don’t get any faster.
See the scientific wording
In elite race walkers, consuming a high-carbohydrate diet (8.6 g/kg/day) or a periodized carbohydrate availability diet during 3 weeks of intensified training is associated with 5.3–6.6% improvement in 10 km race walk performance, whereas a ketogenic low-carbohydrate, high-fat diet is associated with no performance improvement (−1.6%, 90% CI: −8.5, 5.3%).
What the research says
1 studyThe study found that race walkers on high-carb or carb-periodized diets got faster in a 10 km race, while those on a low-carb keto diet did not improve, just like the claim says.
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.