Calorie value of food compared to the value to create it. Does it really take more to create than is gained from consuming? If so, do biofuels make an energy profit? [more inside]
posted by twine42 on Jul 29, 2008 - 15 answers

How does my excersise bike calculate calories based on weight, and how accurate is it? [more inside]
posted by twine42 on Jun 9, 2008 - 14 answers

How low in calories can a diet get and still be considered healthy? [more inside]
posted by twine42 on Dec 19, 2005 - 28 answers

PhysicsFilter : which burns more calories, a treadmill or a road run? [MI] [more inside]
posted by twine42 on May 9, 2004 - 20 answers