I've never been one for adequate water intake. It's not a good habit to go all day only on a couple of glasses of water. Originally when I started on the Atkins Diet I would only drink roughly 2 glasses of water a day. My diet only consisted of meats and fats. No salads or veggies. I often felt weak and depleted, not mentioning having frequent headaches. I guess this is why my keto stix turned dark purple. While the weight was falling off of me, I did not feel healthy. Now I eat a salad with at least 2 meals a day, or some steamed green vegies. And I try to drink water at least 4 to 5 times a day. I now feel the true healthy benefits of the low carb lifestyle that others raved about. I really feel good. The weight comes off slower, but that is probably good.