Sample Size. The investigators plan to complete data collection on a total of 46 women. This sample size is based on an anticipated total body fat mass (FM) loss over 16 weeks of 5.5 kg in the high dairy group and 3.8 kg in the control group. These values are based on data published from 4 studies (5; 20-22). To be conservative in our sample size calculation, we used a higher-than-reported SD of 2.0 kg FM loss. Together, these values indicated that we require 23 women in each group to detect a significant difference in total body FM, with 80% power and 5% alpha. Attrition and non-adherence is anticipated to be approximately 20% to 25%, therefore 30 women in each group will be recruited. We anticipate screening approximately 300+ women to collect 16 weeks of data on a total of 46 eligible and adherent completers, as per Figure 1 below.