I have put on a quite a bit of muscle i started off @ 218 lbs and know i am up to 240 lbs i need to know how much cardio i need to do weekly to help me lose the bodyfat i have around my midsection.I dont want to over do it to sacrifice muscle. Should i be going all out for 30 to 40 min ? my shoulders have grown immensly but there is a layer of fat thats stopping to bring out the nice cuts.

Any Help would be great


Steve from Boston