Skim milk has 12g of sugar per serving, Einstein. 
All CARBOHYDRATES are sugars Einstein.
Lactose is a disaccharide that consists of β-D-galactose and β-D-glucose molecules bonded through a β1-4 glycosidic linkage. Lactose makes up around 2-8% of the solids in milk. The name comes from the Latin word for milk, plus the -ose ending used to name sugars. Lactose is a disaccharide consisting of two subunits, a galactose and a glucose linked together. Its empirical formula is C12H22O11 and its molecular weight is 342.3 g/mol. In the young of mammals, an enzyme called lactase (β1-4 disaccharidase) is secreted by the intestinal villi, and this enzyme cleaves the molecule into its two subunits for absorption.
A Growing Body of Evidence
A growing body of evidence suggests that getting adequate amounts of milk in the diet may help promote a healthy weight for both adults and children. In fact, experts now consider a low dairy intake a risk factor for being overweight or obese.
"Consistently we see that people who regularly drink milk weigh less or have less body fat than those who rarely drink milk or consume little or no dairy," says renowned calcium researcher Dr. Robert P. Heaney of Creighton University in Omaha, who suggests that correcting the country's calcium deficit might reduce the incidence of overweight and obesity in women by as much as 60 to 80 percent.
In one of Heaney's recent studies, he and colleagues reanalyzed data and found that women who consumed the recommend 1,000 milligrams of calcium per day weighed an average of 18 pounds less than those not getting enough calcium. Each 300 milligram increase in calcium intake - the amount found in one glass of milk - was associated with about 5 to 6 pounds lower body weight.
Using data from adults in the Quebec Family Study, Canadian researchers found that women consuming less than 600 milligrams of calcium a day had greater body weight, BMI, percentage of body fat, fat mass, waist circumference and abdominal tissue compared to those consuming 600 milligrams of calcium or more. Milk and milk products provided about 60 percent of the calcium in the diets of the study participants.
Similar trends have been observed with children and teenagers. A recent study conducted by nutrition researchers at the University of Hawaii found that adolescent girls ages 9 to 14 who drank more milk weighed less and had less body fat around their waist compared to their peers who were more likely to drink sodas instead of milk. Girls who drank more soda but also ate the same total calories tended to be heavier.
"We wanted to identify dietary factors to help reverse the growing rate of childhood obesity in this country," said lead researcher Dr. Rachel Novotny, a nutrition professor at the University of Hawaii. "It didn't take much, just an extra glass of milk or a cup of yogurt was associated with lower body fat in teens. Our study found that adolescent girls who ate an additional serving of dairy had significantly lower body fat, when age, ethnicity, growth stage, activity level, and calorie intake were the same."
The researchers found that for every 8-ounce glass of milk consumed, which provides 300 milligrams of calcium, teenage girls weighed an average of 2 pounds less and had a waistline of about one inch slimmer than their counterparts who drank more sodas.
Achieving Better Results
There is a growing body of research indicating that for those people who don't already get the recommended levels of dairy, they can get better results when dieting by including three glasses of milk a day (for a total of 24 ounces) in a reduced-calorie plan.
"No, milk is not a magic bullet, calories still count, but there's growing evidence that you could lose more weight with dairy in your diet plan than without," said Dr. Michael Zemel, a nutrition researcher at the University of Tennessee. Zemel has conducted numerous clinical trials demonstrating that increasing dairy intake to three servings a day promoted greater weight and fat loss in overweight people following a reduced-calorie diet. According to Zemel, most Americans do not consume enough calcium to satisfy their needs. Including three servings of low fat of fat free milk a day is consistent with the U.S. dietary guidelines and MyPyramid.
Zemel said when we don't have enough calcium in our diets, it appears to send two messages to fat cells. "One is to make more fat and the other is to slow down the process of fat burning. Increasing milk consumption seems to tell your body to burn excess fat faster, increasing your body's fat-burning ability," he said.
While more research is needed to understand the dairy-weight loss connection, it looks like the mix of nutrients found in dairy foods, including calcium and protein, may help promote healthy weight by assisting in the body's natural system that regulates fat breakdown and oxidation (or burning of fat).
