Eating a diet that contains sufficient vegetables, fruits, herbal tea and spices can aid in lowering a high protein-creatinine ratio and a high kidney blood urea nitrogen, claims Kidney Healthy Web. Cutting down on meat and alcohol helps in reducing blood urea nitrogen levels, states Kidney Cares Community.
Poor kidney filtration results in high creatinine and urea levels in the blood, but the consumption of certain fruits, such as cranberries, kiwi fruit or blueberries, can improve the kidney function and filtration rate, explains Kidney Healthy Web. Vegetables such as cucumbers, onions and white red bell peppers have antioxidant properties that protect the kidney from further damage and lead to excretion of more creatinine and urea in the form of urine.
A high intake of base-forming foods, such as Chinese cabbage, potatoes and carrots, can aid in lowering blood urea nitrogen, states Kidney Cares Community. These foods alkalize urine and reduce the risks of high urea nitrogen. A patient suffering from this condition should consume a lot of water, which triggers the production of urine, removing creatinine and urea nitrogen.
High-purine foods, such as sea food, animal giblets, lentils, peanuts and spinach, can lead to the deposition of urea nitrogen into the bloodstream, so a patient with high urea nitrogen should limit the consumption of these foods, notes Kidney Cares Community.