Originally Posted by CalgryDialBotle
Milk is good only if you have the particular enzyme complex called rennet. As people grow older, this enzyme is produced in decreasing quantities. So its quite debatable whether milk is good for everyone. Also, many people have lactose intolerance.
Rennet huh?! Interesting. I search over Google, and I found out that there is a commercialized Rennet that you can buy $5 - $19 on online stores.