Relative Energy Deficiency in Sport (RED-S) is a serious but often overlooked condition affecting athletes of all levels. Caused by chronic under-fuelling, it impacts performance, hormonal balance, bone health, immunity, and mental well-being. This guide outlines the early warning signs—such as fatigue, menstrual irregularities, and frequent injuries—and offers practical steps for recognising, diagnosing, and addressing RED-S before long-term damage occurs.

Jenaed Ruddock, UK sports dietitian nutritionist Staying hydrated is one of the most critical yet overlooked aspects of athletic...

Learn why sports nutrition protein and hydration strategies are essential for every active individual. Discover expert tips from Nutrition and Co’s leading sports dietitians to fuel smarter and perform better.