What is 'cortisol cocktail' trend?

The "cortisol cocktail" is a viral drink typically made with coconut water, orange juice and salt, promoted as a remedy for "adrenal fatigue" and stress-related weight gain. However, "adrenal fatigue" isn't a medically recognised condition, and there is no clinical evidence supporting these claims. Experts said the drink may provide hydration and electrolytes, but it can't treat hormonal problems.