Since at first we can rarely give enough to sustain the functions, for several days the patient is apt to lose weight, which is another reason why exercise is in such cases undesirable.

This loss soon ceases, and in the end there is usually a gain, while in most rest cases an exclusive milk diet may be dispensed with after a week.

Where milk is taken alone for weeks or months, it is common enough to observe a large increase in bodily weight.

I have seen several times active men, even laboring men, live for long periods on milk, with no loss of weight; but large quantities have to be used,--two and a half to three gallons daily.

A gentleman, a diabetic, was under my observation for fifteen years, during the whole of which time he took no other food but milk and carried on a large and prosperous business.