When dealing with diarrhea while having kidney disease, it's important to be careful with rehydration. While staying hydrated is crucial, you need to be mindful of fluid, sodium, and potassium restrictions. Consult your nephrologist before using typical rehydration drinks like sports drinks or fruit juices.

For food choices, stick to easily digestible options while avoiding greasy or fatty foods. While the BRAT diet is commonly recommended, bananas should be avoided due to high potassium content. Some kidney-friendly food options include:

- Low-potassium vegetables: iceberg lettuce, cabbage, cucumbers, onions, bell peppers
- Low-potassium fruits: apples, berries, pears
- Cauliflower (good source of vitamin C and fiber)
- White rice
- Toast (non-whole wheat)

Remember to avoid high-sodium foods, excessive protein, and high-phosphorus foods like dairy products and deli meats. Always consult your healthcare provider for personalized dietary advice as recommendations can vary based on your specific condition.