Health and Nutrition
Dairy's role in weight management - the evidence is growing
A growing body of research suggests that milk, cheese and yogurt may play a role in weight management efforts when coupled with a balanced reduced-calorie diet. Additional research is being conducted in this exciting area of nutrition.
Adults
- This research review concluded that dietary calcium may play an important role in the regulation of energy metabolism and may result in a reduction of body fat and an acceleration of weight and fat loss during caloric restriction. This review also concluded that dairy sources of calcium demonstrate substantially greater effects than supplemental or fortified sources.
- Dietary calcium may play a role in regulating body weight, supporting the hypothesis that increasing dietary calcium or dairy intake may reduce future weight gain.
- A research review concluded that nutrients found in dairy, including calcium, may contribute to the reduction of body weight, body fat and insulin resistance syndrome.
- Data from more than 550 women was reevaluated to assess the effects of calcium on weight gain. While calcium is only one factor that potentially affects obesity, findings from this reanalysis of data suggest that increasing calcium intakes to recommended levels may reduce the incidence of overweight and obesity by 60 percent to 80 percent in a population. This is an estimate and the conclusion is based on data projection.
- Low daily calcium intake was associated with greater body fat and body weight, particularly in women.
- In a study involving 35 non-obese, healthy adults, a higher dietary calcium intake over a 24-hour period was associated with burning significantly more body fat, even during sleep.
- Consuming a diet high in fruit, vegetables, reduced-fat dairy and whole grains, and low in red and processed meat, fast food and soda, was associated with smaller gains in body mass and waist circumference.
- Obese people who consumed three to four servings of milk, yogurt or cheese while on a balanced, reduced-calorie diet, lost significantly more weight and fat than those who consumed equivalent amounts of calcium through supplements, or who consumed one or fewer servings of milk, yogurt or cheese per day.
- Among overweight young adults, increased dairy consumption may protect overweight individuals from the development of obesity and insulin resistance syndrome and may reduce the risk of type-2 diabetes and cardiovascular disease. Obesity is one of the risk factors of insulin resistance syndrome.
- Women who consumed higher levels of calcium, the majority of which came from dairy products, had lower body weights than women who consumed less calcium. Results from this study indicated that women weighed an average of 17.6 pounds less for every 1,000 milligrams of calcium consumed.
Children and Adolescents
- Adolescent boys who drank three servings of milk daily while participating in a standardized strength training program had significantly greater increases in bone mineral density and a better overall nutrient profile with significantly higher intakes of vitamin A, vitamin D, riboflavin, calcium and phosphorous, than boys who drank juice. The author noted that although not statistically significant, there were trends for the milk group to lose more body fat after training.
- Girls ages 9 to 14 who consumed diets rich in calcium weighed less and had less abdominal fat than girls who consumed less calcium. For every 300 milligrams of calcium consumed, girls were, on average, 1.9 pounds lighter.
- Dairy consumption in adolescent girls is not associated with a higher body mass index (BMI) or an increase in percentage of body fat.
- In this study, a children's diet rich in calcium and dairy foods was associated with lower body fat than a children's diet with lower calcium and dairy product intakes.