Drinking 12-16 ounces of coconut water daily along with adequate amounts of water should give your body the boost it needs to fight off a UTI. One average size green coconut will yield between 12-16 ounces of water. You can also consume 31/2 tablespoons of coconut oil at the first sign of a UTI. Spread the dosage out through the day. The earlier you treat the infection, the quicker it will be resolved. Along with cranberry juice (make sure it is not sweetened) or grape seed extract and you should have all the ammunition you need to avoid taking antibiotics and to kill off the UTI.