PREP Blog

Relative Energy Deficiency Syndrome, or RED-S for short, is the difference between daily energy intake (food) - exercise energy expenditure, resulting in a state of low energy availability. In turn, this causes a range of varying physiological and/or psychological dysfunctions which can negatively affect sports performance and daily function. Previously known as the ‘Female Athlete Triad’, this name was too narrow and categorised the syndrome as a gender-based condition. RED-