It's true, but any reading is good. Purple may mean dehydration. Don't get into competitions with Ketosticks or scales. They're inanimate objects.

Rule of thumb for water: at least 64 oz. + 8 oz. for every 25 lbs. you want to lose. And that's plain water, not diet drinks, coffee ot tea.

Fat fast causes your body to expel water. When you return to regular LC - I don't know what you're eating so it is hard to comment - whatever you're eating may be causing water retention.

Karen