Because your fat in your body has a lot of water in it, you have to first know how much fat you have in your body before you can then figure out what your healthy water content is. That is, if you say have 33% fat in your body, then you only need another 37% of water alone, because you have water in the fat. The scales don't count "fat water" as water, otherwise your numbers would get very confusing :)
Luckily, every scale that I've seen that measures water also measures fat, at the same time!
Female Body Water Chart
| Body Fat % | Body Water % |
| 4-20% | 58-70% |
| 21-29% | 52-58% |
| 30-32% | 49-52% |
| 33%+ | 37-49% |
Male Body Water Chart
| Body Fat % | Body Water % |
| 4-14% | 63-70% |
| 15-21% | 57-63% |
| 22-24% | 55-57% |
| 25%+ | 37-55% |
So the key here is that as you lose fat, you need to have more water in your system to compensate. Your body will tend to do this naturally for you. That is part of why it's key, as part of any healthy diet, to drink a lot of water. You should never "lose weight" by losing water. That can cause dehydration issues, which can be quite serious!
