Drinking a Shake During a Workout?

hey everyone, just a few questions:

  1. what are the reasons for drinking a protein shake/chocolate milk/Surge DURING workout, in addition to POST workout? is it for energy? to have a constant flow of nutrients to the muscles? or is it just burned as fuel? why?

  2. what effects would drinking a shake during a workout have on fat loss?

  3. why do people recommend against drinking a shake before cardio when its done post workout?

  4. would it be beneficial to have a protein shake/chocolate milk during a high intensity cardio session? what about during low intensity cardio?

thanks a lot

bump. can anyone help? thanks.

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