Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information GNC - 22 E Madison Ave ← View details 22 E Madison St, Chicago, Illinois 60602 +1 312-984-0100