Lifestyle and wellbeing
When energy intake does not match training load, hormone signalling from the hypothalamus can shut down, causing missed periods and reduced fertility, along with effects on bone health. It affects people at recreational as well as elite levels. Recovery usually involves increased intake, adjusted training and support from a sports doctor or dietitian.
Also known as: RED-S, female athlete triad, low energy availability
Sources
- Healthdirect Australia (healthdirect.gov.au)
- Your Fertility, a national public education programme (yourfertility.org.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.