Avoid Caffeinated Drinks
Diarrhea [5] and vomiting, which are serious side effects of chemotherapy, cause a lot of fluids to be lost from the body. Caffeinated drinks such as coffee are diuretics [6] which help to reduce the degree of water reabsorption in the body causing the kidney to excrete more water via urine. The effect of this caffeine coupled with the effect of chemotherapy drugs causes one to be severely dehydrated.
It is important that people who undergo chemotherapy treatment develop the habit of taking enough water. Staying hydrated is key in replenishing the fluids lost from the body via vomiting or diarrhea.