QUESTION: Which of the following nutrients is not present in milk?
A Protein
B Vitamin C
C Calcium
D Vitamin D
ANSWER: Vitamin C
| Component | Composition Range | Function |
| Water | · Approximately 87-89% | · Solvent for nutrients and minerals |
| Milk Proteins | · About 3-4% | · Building blocks for growth and repair |
| Casein | · 2.5-3.2% | · Forms curd in acid and enzyme conditions |
| Whey proteins | · 0.6-0.7% | · High-quality proteins with essential amino acids |
| Lipids (Fats) | · About 3-4% | · Source of energy and fat-soluble vitamins |
| Triglycerides (Fats) | · Majority of lipids in milk | · Energy storage and insulation |
| Phospholipids | · Small amount | · Important in cell membranes |
| Cholesterol | · Small amount | · Essential for cell membranes and hormones |
| Carbohydrates | · Approximately 4.6-5.2% | · Lactose is the main carbohydrate and energy source. |
| Lactose | · About 4.7-5.2% | · Unique sugar in milk · It provides energy |
| Vitamins | · Includes A, D, B-complex and K | · Essential for various metabolic functions |
| Minerals | · Calcium · Phosphorus · Potassium · Magnesium | · Vital for bone health and other functions |
| Enzymes | · Lactase · Lipase · Protease | · Aid in digestion and contribute to flavor |
| Immunoglobulins | · Antibodies | · Provide passive immunity to newborns |
| Lactic Acid | · Present in trace amounts | · Contributes to flavor and preservation |