Certified Cheese Professional Practice Exam

Minerals constitute what percentage of milk composition?

1. 1-3%

2. Less than 1%

3. 3-4%

4. 1-5%

The correct answer is: Less than 1%

Milk is composed of various components, including water, fats, proteins, lactose, and minerals. Minerals in milk, which include calcium, phosphorus, magnesium, sodium, and potassium, play a crucial role in nutritional aspects. In terms of percentage composition, minerals typically make up less than 1% of milk. This small proportion is significant given the role these minerals play in bone health and overall bodily functions, particularly in growing children and populations needing dietary calcium, such as the elderly. The other options suggest larger percentages, which do not accurately represent the mineral content in milk. While minerals are essential, they remain in a relatively small quantity compared to the other components, especially water, which constitutes a significant part of milk’s composition. Thus, the assertion that minerals constitute less than 1% aligns with standard nutritional and compositional data regarding milk.