Fig. 1.

Supplements used by British Army soldiers under training and soldiers based at UK Phase 1, 2 and 3 training establishments (n 1198 current users). * Amphetamines and other compounds including ephedra and ephedrine alkaloids. † Herbal preparations such as ginseng, ginkgo and echinacea. ‡ Recovery drinks including Lucozade Sport Recovery and Recovermax. § Caffeinated drinks including Relentless, Red Bull and Lucozade Sport Caffeine Boost, excluding caffeine in tea, coffee and cola.