Too much of a good thing, my friend became allergic to coca cola after doing a gallon or two every day for years.
He got severe stomachache and diarrhea. but now after several years on faxe kondi light ( and other light things ) he are not able to enjoy a small ( 25 Cl or 0.5 liter ) with no problems.
I personally would like to drink more milk, but i fear if i hit it harder i might run into a lactose problem, also like orange juice and other juices, but they become too expensive, and also most often come in 1 liter cartons which dont travel well.
But milk and juice are the 2 things i pretty much always have plenty off in my refrigerator. actually i just downed the last of the 1 liter i opened up 6 hours ago. and i have also done a little orange juice tonight.