Yes, strolling at a moderate pace has important health benefits. (For starters, it keeps your heart healthy.) But brisk walking — at a pace that makes it tough to talk, which means at least two miles in 30 minutes — is a better way to lose weight. Walking fast allows you to cover more ground and work more muscles than walking slow, says Liz Neporent, a New York City-based exercise physiologist and author of Walking for Dummies (IDG Books Worldwide, 2000). At a very quick pace, you’ll burn almost as many calories as you do while jogging, with less stress on your body.
(Source: Natural Health Magazine, August 2001.)