After retiring, Birk lost 75 pounds and is now modeling for a weight loss company.
Dedicating himself to nutrition and maintaining an active lifestyle, Birk lost 75 pounds from his 310-pound NFL body, not to mention 10 inches from his waist. He’s even been known to do a little modeling work for Body By ViSalus.
Heaviest: 310 pounds
New weight: 235 pounds
Weight loss: 75 pounds