US-based Dean Foods Company has introduced lactose-free milk under its DairyPure brand.

According to the US Food and Drug Administration (FDA), between 30 and 50 million people in the country are lactose-intolerant.

"New DairyPure Lactose Free milk means that we’re now able to deliver our high-quality DairyPure milk to all consumers."

DairyPure Lactose Free fresh milk delivers eight essential nutrients, comprising calcium, protein, vitamins A, D and B12, riboflavin, phosphorus and potassium. It has also been tested for antibiotics and is produced by cows fed on a healthy diet.

It is estimated that around 42% of Americans lack calcium, and more than 80% lack Vitamin D.

Dean Foods vice-president of marketing Greg Schwarz said: "New DairyPure Lactose Free milk means that we’re now able to deliver our high-quality DairyPure milk to all consumers.

"Whether it’s a lifestyle choice or the result of lactose sensitivities, everyone can enjoy Lactose Free milk knowing that it’s backed by our Five-Point Purity Promise."