Perhaps Everybody Does Need Milk?

Milk, and dairy products in general, have been demonized for years as common allergens, high-fat foods, and sources of hormones, pesticides, and other xenobiotics. But perhaps that cow has a silver lining. Just the fact of being overweight can result in increased oxidative stress and inflammation. In a recent study, two diets were tested to determine whether either diet had an effect on markers of inflammation and oxidative stress in overweight or obese individuals. A group of 20 individuals (10 overweight - BMI 25-29.9; 10 mildly obese - BMI 30-34.9) were randomly assigned to a dairy-based diet group (1,200-1,400 mg calcium daily) or a soy-based diet group (500-600 mg calcium daily). The dairy was provided primarily by three milk-based smoothies daily, while the dairy-free soy group consumed three soy-protein smoothies daily. The study was a crossover design, so after 28 days of consuming one diet and another 28 days for a washout period, the diets were switched. Caloric content of both diets was the same. Markers of inflammation and oxidative stress were measured at baseline and on days 7 and 28 of each diet period. The dairy-based diet resulted in a significant decrease in markers of inflammation and oxidative stress, while the soy diet did not exert any significant effect. The dairy, but not the soy, diet also resulted in an average 20-percent increase in adiponectin, a protein hormone that helps decrease obesity and related conditions, including insulin resistance, fatty liver, atherosclerosis, and type 2 diabetes.
Am J Clin Nutr 2010;91:16-22.
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Caveat: If you're going to eat/drink dairy, make sure it is organic and preferably grass-fed.