I say it all the time but you have to drink a lot of water. If you are sedentary, you should drink half your body weight in ounces every day. If you are active, you should drink more! 
If it is hard for you to get the water in, start your day with a big glass, sip hot lemon water throughout the day and schedule water breaks mid-morning and mid-afternoon. The only time I don’t want you to drink is at meal times when the water can impede digestion by diluting your digestive juices. Carry it with you everywhere you go – in a glass or stainless steel bottle.
The quality of the water you drink is very important. Our cells won’t absorb poor quality water because it is full of toxins. We can end up chronically dehydrated even if we drink a lot of water. Dehydration leads to fatigue, aches and pains, dry skin and headaches.
Drink filtered water or buy water in glass bottles to reduce toxins. Plastics leach xenoestrogens into our water (and our food). These are endocrine disruptors that can wreak havoc with our bodies. Some doctors believe they are contributing to fertility problems by causing girls and young women to release too many eggs every month so that they run out by the time they want to get pregnant. They may also contribute to breast cancer. What xenoestrogens do to developing boys… well no one is researching that as thoroughly as they ought… 
Soft plastics leach the chemicals faster. You can end up drinking “plastic tea,” especially if you leave the plastic bottle in a hot car! If you do have to buy water in a plastic bottle, opt for brands bottled in hard plastic like Fiji water. Also opt for BPA free plastic.
Fresh, organic vegetables are a great source of water. Sprouts are 70% water. The water in them is naturally purified and “alive” or bio-statically charged. On the other hand, eating dehydrated foods (such as the dehydrated crackers so loved by raw foodists) can dehydrate you because they absorb water from you. When you eat dehydrated foods you should break my rule and drink with the meal. 
Carbonated water is a favorite drink of many of us. It is not a good choice as a staple part of your diet because the Co2 evaporates inside your body and causes inflammation. I still recommend it with some lemon or lime when you go out and need to have a non alcoholic drink. But do not buy sparkling water in aluminum cans! Aluminum is a potent neurotoxin which you don’t want in your gut or brain. Small but frequent doses of it can add up and are cumulative with the other heavy metals and toxins we are exposed to on a daily basis.  I have forbidden my husband from buying La Croix in cans! He grumpily schlepps glass bottles of Pellegrino now.
Here is a link to a test of different water filters. Surprisingly the popular Brita filter came out last for removing heavy metals. 
Bottoms up!

Remember – I am a coach, not a doctor. I do not give medical advice but try to give you ideas and information about how to take control of your health. Always listen to your body, talk to your doctor, and do your research.