Questions and Answers on Milk 

 and Milk-Testing 



What is the average composition of cow's milk? 



Water 87.0% 



Fat 4.0% 



Sugar 5.0% 



Casein 2.6% 



Albumin 7% 



Ash 7% 



100.0% 



How does the composition of cow's milk compare 

 with the composition of human milk? 

 Human milk contains more sugar, less casein and 

 albumin and less ash. Konig gives the following 

 composition of human milk: 



Water 87.41% 



Fat 3.78% 



Sugar 6.21 % 



Casein and albumin 2.29% 

 Ash 31% 



100.00% 



The specific gravity of human milk is lower than 

 cow's milk, being about 1.027. 



