For your cancer patient, I can not emphasize this enough. Many of the symptoms from chemotherapy can be aided by drinking more water. Choosing water as your form of hydration is one of the best choices you can make. Most fruit juices contain more sugar than anything else, and coffee and tea dehydrate you.
Water replenishes your body, and it cleanses you.
We start every morning in our house with a glass of lemon water.
This is an Ayurvedic practice, which emphasizes cleansing the body first thing in the morning, before you have put any food into your body. If you can, drink your lemon water an hour before eating. This gives your liver a little "squeeze" and gives your body the ability to absorb nutrients, and combat the effects of chemo, all day. I squeeze one whole lemon into filtered water. Your water can be lukewarm, or slightly heated.
Another cleansing way to drink your water is to add a splash of unsweetened cranberry juice. I am talking 100% pure cranberry, no sugar. This is not tasty on its own, my friends, it is bitter. But if you put literally a splash in your water, it adds interest, and also vitamin C, fiber, manganese and copper. Cranberry is also one of the richest sources of anthocyanidins, which is an antioxidant that prevents infections and has been shown to inhibit the development of cancer, among other degenerative diseases. In fact, it is the fruit that demonstrates the highest level of this compound.
Finally, when your patient is longing for that glass of wine, but just feeling like that probably won't be best right now, it's amazing what a slice of lime and a strawberry can do with water in a wine glass...it just FEELS special.