Some milk products have more sugar in the dairy milk and other milk brands have less sugar in it. Why is there such a difference in sugar content in the milk?

The sugar in white milk is naturally occurring and is slightly different depending on the percentage of milk fat. For example, per cup (250 ml) 1-2% milk contains 13 g of sugar (called lactose); 2% -4% contain 12.5 grams of lactose and skim milk contains 11.5 g of lactose. Only flavoured milk has sugar added to it and amount will vary with the formula the processor uses.

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