Final answer:
Whole milk has the highest fat content and human milk has the highest natural sugar content.
Step-by-step explanation:
Whole milk has the highest fat content among different types of milk.
In terms of natural sugar content, it is important to note that all milk naturally contains lactose, which is a type of sugar. However, the amount of lactose may vary. Human milk contains about 7.5% lactose, which is the highest concentration of natural sugar. Cow's milk, on the other hand, contains about 4.5% lactose.
So, if you're looking for milk with the highest fat content and the lowest amount of natural sugar, whole milk would have the highest fat content and human milk would have the highest sugar content.