What Is Better to Lose Weight: Walking Outside or on the Treadmill? – This is a place for the community to provide tips and advice on What Is Better to Lose Weight: Walking Outside or on the Treadmill?. This topic was created by Gas and Process Becker and the tips are provided by the community. The tips you add here can be your own or referred from another site. The best tips are then ranked at the top when up-voted by members of the community.