Have about 6-8 drinks
(1½ - 2 litres) per day for good hydration – water is a good choice. Limit caffeine to 200mg per day (about 1 shot of espresso or 2 mugs of instant coffee or 2½ mugs of tea)
Thoroughly cook meat, fish and eggs; wash all soil from vegetables and fruit and avoid vitamin A supplements, liver, liver pate, unpasteurised dairy products, soft and blue cheeses, swordfish, marlin and shark; limit tinned tuna to 4 small servings per week.
to stop smoking or misusing drugs or medication and avoid alcohol.