Where was I wrong (not to try and sound like a dick)? I never said marijuana didn't have cancer-fighting properties, it certainly does. But it does harm the immune system.Neithe rid you are 100% right or wrong. Burning marijuana does release carcinogens as with burning anything but studies have also show marijuana has cancer-fighting properties. Smoking anything negatively affects vitamin C absorption my ma tells me.. So she makes me take vit C+Calcium. But then again I've always had health problems...