This question was sparked when I was reading the topic 'Can I count my tea as water?" message board. A member drinks 15 8 oz glasses of water a day (120 oz) which is half of her weight of 240. Is this a good guideline, providing one has no medical issues? Just wondering - I drink at least 9 glasses of only water daily - don't think I could drink anymore. I also drink lemonade, tea, milk, & coffee from time to time in addition to the water.