There are about 12 grams of natural occurring sugar (lactose) in each 8-ounce glass of milk, which is about the same amount of natural sugar you would find in one small banana. Flavored milk, like chocolate, does contain added sugar for flavor.
Here’s a closer look at the exact amount of sugar in milk:
|Type of Milk||Amount of Sugar (per 8 oz. serving)|
|Fat-Free (Skim) Milk||12 grams natural sugar|
|Low-Fat (1%) Milk||12 grams natural sugar|
|Reduced Fat (2%) Milk||12 grams natural sugar|
|Whole Milk||12 grams natural sugar|
|Chocolate Milk (Whole)||24 grams sugar (12 grams natural sugar, 12 grams added sugar)|
|Lactose-Free Milk||12 grams natural sugar|
So is the sugar in milk bad for you?
When looking at your diet as a whole, it is important to consider a food’s full nutrient package, including differentiating natural and added sugars occurring in all foods like milk, yogurt and fruits. Many foods and beverages with naturally occurring sugars, like milk or fruit, also contain vitamins and minerals, protein or fiber we need to be healthy. So yes, while milk does have natural sugar, it also offers up nine essential nutrients including 8 grams of high-quality protein in every 8-ounce serving.
How do the added sugars in flavored milk stack up to other common drinks?
Registered Dietitian Stephanie Cundith compares the added sugars and essential nutrients in flavored milk to other common beverages in the following video:
What about those with lactose intolerance?
People who have been diagnosed with lactose intolerance are less able to digest lactose due to decreased amounts of the lactase enzyme, which breaks down lactose. As a result, some may experience abdominal discomfort and other unpleasant symptoms. However, many people with lactose intolerance are likely able to tolerate varying degrees of lactose. This is especially important, since those who think they have lactose intolerance may cut dairy out of their diet, which means they may not be getting key nutrients their bodies need.