Not to be an ass, but didn't you already start a whole new topic to ask that question?
There shouldn't be such a thing as a "cardio orientated" workout. What do you do cardio for, to get in shape, to lose weight? Well, you will be aided tremendously by lifting weights. If you want to do cardio for 2 hours a day, go ahead, but make sure you're lifting weights 3 times a week( at least ) as well.
Protein is needed to build that muscle that you will be building while lifting weights, so yes, you do need protein even if your goal is to *LOSE* weight. And when I say weight, I mean fat.
( I believe protein also helps you burn fat, but I don't know how or why, so I won't say that it does )
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You don't like my point of view..but im insane
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