Originally Posted by Noob
I hear crack does wonders. So I hear.
But yeah, most 'healthy' stuff is good for your metabolism. If you want to get really technicaly, you can concentrate on the glycemic index and make sure you're getting a good amount of carbohydrates that are quicker for your body to process. Stuff really low on the index tends to be slow your metabolism down somewhat. How much of an effect it has I couldn't tell you, but it might be worth a try.
I think you have it backwards. High GI stuff will spike your metabolism for a moment but then it will crash and the released insulin will cause fat storage. By eating low GI foods they absorb slower keeping a more level blood sugar which helps keep your metabolism going well.
The best way to increase your metabolism is eat right and gain more muscle. More muscle burns more energy.