Training, health and performance

Food, Energy, Growth & Missing Periods: What Coaches Should Notice

Support healthy development without diagnosing or commenting on weight.

Young swimmers need energy for growth, school, everyday life, recovery and training.

A coach should support that message and avoid creating a culture where being lighter is treated as automatically better.

Growing bodies need fuel

Long or frequent swim sessions can increase energy needs.

Young people should not be encouraged to skip meals, cut out major food groups or deliberately under-eat to achieve a particular body shape for swimming.

Detailed nutrition plans belong with appropriately qualified professionals.

What might concern a coach?

Look at patterns rather than one difficult session.

Possible welfare signs can include:

  • repeated unusual tiredness;
  • dizziness or faintness;
  • recurrent injuries or slow recovery;
  • persistent worry about food or weight;
  • deliberate restriction of food;
  • established periods becoming very irregular or stopping;
  • noticeable decline in wellbeing or performance.

None of these proves a particular diagnosis. They are reasons to open a supportive conversation and involve a parent, carer or appropriate healthcare professional.

Avoid body commentary

Do not praise weight loss as evidence of commitment or tell a young swimmer they need to look leaner.

Even casual comments about shape, puberty or "race weight" can land heavily during adolescence.

Focus coaching feedback on skills, strength, technique, recovery, consistency and health.

Missing periods are not a training badge

A young person should not be told that losing their period is simply what happens to serious athletes.

If established periods stop or change significantly, encourage medical review.

Food is not a punishment or reward

Avoid using food as something athletes have to "earn" through training or burn off afterwards.

For younger swimmers, keep messages simple: regular meals, enough food, fluids, sleep and recovery all support both growth and sport.

Know your limits

If you suspect disordered eating, low energy availability or another health issue, follow club welfare procedures and refer to appropriately qualified support.

Do not attempt to treat the issue through informal weigh-ins or a self-made diet plan.

Remember

A healthy development pathway protects the swimmer first.

Performance should not come at the cost of growth, menstrual health or a young person's relationship with food.

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Keep in mind: Coaches, teachers and clubs support, protect privacy and signpost. They do not diagnose. Severe pain, fainting, dizziness or significant illness should follow club, school or facility first-aid procedures and be passed to a parent, carer or healthcare professional.

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