Estrogen supplementation in men increases serum C‐reactive protein concentration before, during and after moderate intensity endurance exercise

Plasma C‐reactive protein (CRP) concentration, a marker of systemic inflammation, has been shown to be higher in women versus men. We investigated the effect of estrogen (ES) supplementation and moderate intensity endurance exercise in men on serum CRP concentrations. In a randomized, placebo‐controlled, double‐blind, cross‐over design, we measured CRP concentration in 10 men after eight days of either ES supplementation (2 mg 17‐β …