Electrolytes are key to hydration, mainly because they enhance fluid retention. “Having more electrolytes can trigger more efficient fluid uptake from the gut,” says Kim Barrett, a gastrointestinal ...

Lactated ringers and normal saline are both types of intravenous (IV) fluids. IV fluids are given whenever there is a concern about maintaining fluid balance. Each type of IV fluid has different ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...

Optimal ranges are set at different levels for each electrolyte, and levels can be measured with a blood test. If you have an electrolyte imbalance, you either have too much or too little of one or ...

Magnesium, potassium, or sodium? Learn what each electrolyte does, signs of low levels, and when a supplement may help.

Once marketed solely to enhance hydration during workouts, electrolyte powders have now gone mainstream — makers promise they'll help you stay hydrated anytime, anywhere. But do you really need an ...

Rebecca Jaspan is a registered dietitian specializing in anorexia, binge eating disorder, and bulimia, as well as disordered eating and orthorexia. Electrolyte powders are made up of sodium, potassium ...