Science: Ice Water, Diet, and Weight Loss Question

[theben]

The Ice Water Diet:

Although I have not bothered to do the simple calculations myself, drinking on gallon of water that is approx. 37 degrees F should require about 130Kcal of heat energy to reach body temperature.

I would guess that much of the heat that the cold water would absorb is the body's waste heat and would provide little to no benefit in weight loss. However, I am sure the body will be forced to spend some additional energy that it would not otherwise have used to equalize the temperuatures.

Does anybody have knowledge of this topic? (strong educational background in the field or well read on this subject via legitimate publications)