Very interested in dieting need help?

I'm currently 27 years old 6 foot 1 aprox 325lbs. I was to lose atleast 50lbs if not more. I've been searching and searching for info on simple but effective diets as well as looking into herbal life products (herd good things about it) but everything I read on diets is confusing and most of them contradict the other. I've heard a lot. Along the lines that you basic need to burn more cals then ur taking in but then I've also read that if ur not eating the correct things even if it is less then your burning it won't really work. Can someone please help simplify this for me or atleaset point me in the right direction I would be extremely greatful