guidance may be inappropriate.
The goal should not simply be:
**“Eat as much protein as possible.”**
The goal is:
**“Get an appropriate amount of high-quality nutrition for your body and kidney function.”**
That distinction is important.
Kidney health and muscle health need to be considered together.
## Hydration and the Kidneys
Water is essential for normal kidney function and physical performance.
The kidneys adjust urine concentration and help regulate body water.
Muscles also contain a large amount of water, and dehydration can affect exercise performance.
However, the common advice to “drink as much water as possible” is not appropriate for everyone.
People with advanced kidney disease or certain heart conditions may have prescribed fluid limits.
People receiving dialysis, in particular, may need to carefully manage fluid intake between treatments.
Therefore, hydration advice should be personalized.
If
