Please choose the correct ending to complete the given sentence: Health: [header] How to support kidney function [title] Hydrate wisely. [step] Because the kidneys help flush out waste products and drugs, some people might think that over hydrating can benefit their kidney function. But there are no studies that support this and instead recommend drinking four to six glasses a day.

Ending1: Remember that if you use adequate water, your kidneys replenish this water. [substeps] If you're feeling thirsty after a meal, drink fruit juice before dinner and water after an afternoon snack to help flush your body of excess liquids. Ending2: If your kidney function is severe, then drink two to three glasses a day; if they aren't, the body cannot adequately flush toxins. [substeps] This strategy can be difficult, but most people have this technique perfected at least five to 10 times a week. Ending3: Drinking in this amount will help prevent dehydration and help fight nausea and vomiting. [substeps] Try to drink eight glasses of water a day. Ending4: This amount should be sufficient to support your kidneys' function. [substeps] Stick to water, which is the best option to keep you hydrated without added sugar, caffeine, or other substances to your diet.

Answer format: ending1/ending2/ending3/ending4