the best start is a good clean diet with lots of fresh fruit and veggies and proper hydration. you can take a multi and calcium/mag. zinc in the evening on a full stomach... tell you doctor how much you have been drinking in the past and ask for guidance. or better yet a referral to a RD (registered dietician) if your insurance covers it....and tell them what you've been doing...they can set you up with the best choices.
you can even ask the pharmacist if you like.