The only real benefit to your health through reverse osmosis would be if you needed kidney dialysis. Kidney dialysis is a type of reverse osmosis filter. There are many disadvantages to home reverse osmosis systems. They waste a lot of water. They require electricity. They are extremely expensive. They cannot be installed without the assistance of an electrician and a plumber. Nearly everyone today needs good quality drinking water filters. Increasing your intake of healthy water will improve the function of your immune system.