Milk is a poor source of –

✅Explanation: Milk is considered a poor source of iron. While it contains some iron, the amount is relatively low compared to other food sources like meat, poultry, and fortified cereals.

🔑Key Points:
-Bovine milk (human milk/ cow milk) has a higher concentration of calcium, which competes with iron and excessive amount of protein and minerals interferes in the absorption of iron. Human breast milk is a complex matrix with a general composition of 87% water, 3.8% fat, 1.0% protein, and 7% lactose. The fat and lactose, respectively, provide 50% and 40% of the total energy of the milk 
-As the other options are abundantly present in milk and milk is rich source of calcium, phosphorus, sodium, and potassium, protein and fat-rich., Milk has a significant amount of Vitamins like vitamin A and B, thiamine, riboflavin, and nicotinic acid., Milk is a poor source of vitamin C and Vitamin E and also contains vitamin B12. 

🛑 Additional Information::
-Milk is a nutrient-rich liquid food.
-It is an emulsion of fat in water.
-It is a colloidal suspension of proteins.
-It is produced by the mammary gland of mammals.

• It is composed of:
-Water = 87.5%.
-Fat = 3.9%.
-Protein = 3.4%.
-Lactose & Minerals = 5.2%.

• It comprises the following components:
-Protein, Calcium, Magnesium, Water, Fat, Phosphorus, Vitamin D, Potassium, Vitamin B12, Zinc & some amount of Carbohydrate.
-Lactose is the main Carbohydrate.
-Lactose is a disaccharide found only in milk and dairy products.
-The fermentation of lactose produces lactic acid, which causes a sour taste.
-The molecular mass of lactose: C12H22O11.
-Milk contains a variety of proteins.
-Casein protein is the main among them.
-These protein form micelles which causes scattering of light ultimately causing milk to appear as white.

• Function:
-To provide nutrient to the body for the growth of tissue, bones & muscles.
-Lactic acid is found in it.
-June 1: World Milk Day.