Coriander is a herb which is good for our health, but it is not beneficial for the kidney failure patients as it contains high amount of potassium in it. Kidney helps in maintaining the level of potassium in our body as it refines the high amount of potassium from our blood. So, in case of kidney failure, kidney fails to filter the access of potassium which leads to the high potassium level in the blood which can be very dangerous. It might lead to a person’s death. So, it is important for the kidney failure patients to exclude coriander in their diet.