Mixed
Higher adherence to sports nutrition guidelines, measured by the Athlete Diet Index (ADI), is associated with lower fat mass in professional athletes.
For professional athletes, eating according to sports nutrition guidelines (high ADI score) is linked to having the lowest body fat. For non-professionals, this link is weaker. If you are serious about body composition, aligning your diet with established sports nutrition standards is a key lever, especially if you have access to professional guidance.
Specifically, professional athletes with high ADI scores had the lowest FM values.
Why this rating
Cross-sectional design limits causal inference, though the interaction effect is statistically significant.
Source
Comparison of athlete diet index and body composition between professional and non-professional athletes: a comparative cross-sectional study
Elaheh Dehghani et al. · Journal of the International Society of Sports Nutrition · 2025
DOI 10.1080/15502783.2025.2533497
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