How long does it take for metabolism to speed up?

[The Rock!]

How long would it be until my metabolism sped up if i had a huge increase in caloric intake?

[jtuner77]

what is a huge increase and what are you doing exercise wise to help? You can't just expect your metabolism to speed up because you are eating more. Thats how you get fat....

[Sgt. Hartman]

IMO the only ways to increase your metabolism is adding lean body mass, or supplementing with GH, AAS, or thermogenics.

Extra cals can increase muscle tissue if you're training properly and thereby increase your metabolism, but extra cals without proper training or too many extra cals even with proper training equals fat gain.

[The Rock!]

Thank you for the advice guys. I was planning on adding 500 extra cals to my daily intake while increasing my workout schedule. I think that I should like my stats in another thread to see what you guys think.