Yes pickle juice is good for the kidneys and for keeping kidneys healthy.
Pickle juice is also good to drink for people who are on dialysis treatments or have chronic kidney disease as it helps the kidneys while on dialysis.
Pickle Juice is high in sodium which makes it good for your kidneys so if you want to keep your kidney's healthy then drinking pickle juice is a good way to keep those kidneys healthy.
Pickle Juice also has other health benefits as well such as helping with digestion and even helps with weight loss.