Of the following constituents of milk, which one is present in the LEAST proportion?

Prepare for the Public Health Sanitarian Test with flashcards and multiple choice questions. Each question offers hints and explanations. Get ready to ace your exam!

In milk, the constituent present in the least proportion is mineral ash. Mineral ash refers to the inorganic components of milk, including essential minerals like calcium, potassium, and phosphorus. These minerals typically make up about 0.7-0.9% of total milk composition, which is significantly lower compared to other major components.

On the other hand, water constitutes the largest portion of milk, accounting for about 87% of its total volume. Fat and protein also form substantial parts of milk, with fat ranging between 3.5 to 5% depending on the type of milk and protein comprising approximately 3-4%. Thus, in terms of composition, mineral ash is markedly lower than the primary constituents like water, fat, and protein, making it the least abundant component in milk.

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