Hey, get your bike out and ride that thing. I've been on a diet for the last 5 weeks (lost 26 pounds so far) and have been riding my bike (Specialized Explorer) when ever I can. I am the fastest fat guy on the block (6'2" 274) down from 300lbs. I rode 15.5 miles today, 22 miles yesterday, 26 miles the day before and 14.7 the day before that. Trying to build up for a 178 mile bug out on my bike for late summer.