Water maintains circulating volume; contributes to thermoregulation by evaporation; is necessary for elimination of waste products through the renal tubules; aids in digestion through secretions of body fluids within the gastrointestinal tract (e.g., saliva, bile fluid, pancreatic fluid), allows for interaction of food constituents and enzymes; forms an aqueous environment for metabolic processes and chemical reactions (e.g., hydrolysis); and is a major component of other body fluids such as joint fluid and [[Cerebral Spinal Fluid - Anatomy & Physiology|cerebrospinal fluid]]<ref name="Case"/>. Increased water intake can also be used as a preventative or therapeutic treatment for cats and dog with [[Cystitis|lower urinary tract disease]].
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Water maintains circulating volume; contributes to thermoregulation by evaporation; is necessary for elimination of waste products through the renal tubules; aids in digestion through secretions of body fluids within the gastrointestinal tract (e.g. saliva, bile fluid, pancreatic fluid), allows for interaction of food constituents and enzymes; forms an aqueous environment for metabolic processes and chemical reactions (e.g. hydrolysis); and is a major component of other body fluids such as joint fluid and [[Cerebral Spinal Fluid - Anatomy & Physiology|cerebrospinal fluid]]<ref name="Case"/>. Increased water intake can also be used as a preventative or therapeutic treatment for cats and dog with [[Cystitis|lower urinary tract disease]].