From what I have read it is good to drink half your body weight in ounces. That would mean 125 oz. for you (10 1/2 12oz glasses). It's true that drinking too much water can put too much stress on the kidneys, however when loosing weight we need to flush out the toxins that are being released from stored fat. Also, the water lost from perspiration and respiration during exercise must be replaced.
Hope this helps.