Faulty mastication, peculiar susceptibilities to casein and an excess of other solid foods often causes the distress which follows cheese eating.
"The-Suffrage-Cook-Book"
Kleber, L. O., Mrs.
An excess of casein, therefore, thrown on an already overtaxed stomach can all the more readily induce disorder.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
In the case of the goat the result is even more striking, the beet diet giving a very large decrease of both casein and butter and an increase of milk sugar.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler