The Claim

Low energy and carbohydrate availability are key factors that influence under-recovery in athletes, and addressing these factors may prevent symptoms commonly attributed to overtraining syndrome in endurance and high-training-load populations.

Source: Overtraining Syndrome (OTS) and Relative Energy Deficiency in Sport (RED-S): Shared Pathways, Symptoms and Complexities

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
1score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

If athletes don’t eat enough calories or carbs, especially during intense training, they might not recover well—and fixing that could stop them from feeling overly tired or burned out, which people often think is overtraining.

See the scientific wording

Low energy and carbohydrate availability are key factors influencing under-recovery in athletes, and addressing these may prevent symptoms commonly attributed to overtraining syndrome in endurance and high-training-load populations.

What the research says

1 study
  1. Study: Overtraining Syndrome (OTS) and Relative Energy Deficiency in Sport (RED-S): Shared Pathways, Symptoms and Complexities

    The study finds that many athletes thought to be overtrained are actually not eating enough, especially in calories and carbs, and that fixing their diet could prevent overtraining symptoms.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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