The idea isn't new to anyone here, but this article is one of many that haven't been posted:

Am J Clin Nutr. 2004 May;79(5):907S-12S.
Role of calcium and dairy products in energy partitioning and weight management.
Zemel MB.
University of Tennessee, Knoxville.
Dietary calcium plays a pivotal role in the regulation of energy metabolism
because high-calcium diets attenuate adipocyte lipid accretion and weight gain
during the overconsumption of an energy-dense diet and increase lipolysis and
preserve thermogenesis during caloric restriction, which thereby markedly
accelerates weight loss. Intracellular Ca(2+) plays a key regulatory role in
adipocyte lipid metabolism and triacylglycerol storage; increased intracellular
Ca(2+) results in the stimulation of lipogenic gene expression and lipogenesis
and the suppression of lipolysis, which results in increased lipid filling and
increased adiposity. Moreover, the increased calcitriol produced in response to
low-calcium diets stimulates adipocyte Ca(2+) influx and, consequently, promotes
adiposity, whereas higher-calcium diets inhibit lipogenesis, inhibit
diet-induced obesity in mice, and promote lipolysis, lipid oxidation, and
thermogenesis. Notably, dairy sources of calcium markedly attenuate weight and
fat gain and accelerate fat loss to a greater degree than do supplemental
sources of calcium. This augmented effect of dairy products relative to
supplemental calcium is likely due to additional bioactive compounds, including
the angiotensin-converting enzyme inhibitors and the rich concentration of
branched-chain amino acids in whey, which act synergistically with calcium to
attenuate adiposity. These concepts are confirmed by epidemiologic data and
recent clinical trials, which indicate that diets that include 3 daily servings of dairy
products result in significant reductions in adipose tissue mass in obese humans in
the absence of caloric restriction and markedly accelerate weight and body fat loss
secondary to caloric restriction compared with diets low in dairy products. These data
indicate an important role for dairy products in both the prevention and treatment of obesity.
PMID: 15113738 [PubMed]