 Relative energy deficiency in sport

Relative energy deficiency in sport (RED-S) is a syndrome in which disordered eating (or "low energy availability"), amenorrhoea/oligomenorrhoea, and decreased bone mineral density (osteoporosis and osteopenia) are present.RED-S is the broader, more comprehensive name for what was formerly known as female athlete triad (or simply the triad), which was a condition seen in females participating in sports that emphasize leanness or low body weight.