Your blood is cleaned by the kidneys and liver. The best foods to eat to aid your kidney’s and liver’s ability to cleanse and filter blood are: water (drink lots of water daily and avoid juices and soda), cruciferous vegetables (kale, broccoli, cabbage, etc.), blueberries, cranberries, garlic, grapefruit and apples. Try to eat less meat (or not at all), reduce your oil intake and avoid processed foods. Try to maintain a plant-based diet for a period of time.