Official guidance & reports
ISSN: keto, exercise performance, and body composition
International society of sports nutrition position stand: ketogenic diets
Published
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Fasting Free source summary: https://fastingfree.com/education/issn-2024-ketogenic-diets/
PLAIN-LANGUAGE SUMMARY
What this source adds
Endurance outcomes were generally unchanged or worse with keto; maximal-strength outcomes were commonly similar. Greater fat oxidation did not establish better performance. Energy, protein, and fluid differences complicate body-composition findings.
Keep these limits in view
A consensus synthesis inherits the weaknesses of its included studies. Long-term, female, and highly trained strength-athlete data remain limited. It does not evaluate exogenous ketone supplements or provide medication-safety guidance.
Understand the context
- Evidence type
- Professional position stand based on a review of controlled exercise studies
- Population or scope
- Recreationally active adults and competitive athletes in the reviewed studies
- Sample or coverage
- Evidence synthesis; no new participant cohort
- Study duration or data period
- Mostly short interventions; strength evidence discussed primarily spans 4–12 weeks
- Comparison
- Ketogenic and non-ketogenic diets during exercise or training; diet composition and ketosis verification varied.
- Measured outcomes
- Endurance performance, muscular strength, and body composition; no pooled treatment effect or formal GRADE rating.