Calcium Supplementation for a Healthy Weight (CaSHeW)

Exclusion Criteria

• •Diabetes mellitus
• •History or clinical manifestations of significant metabolic, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, urological, neurological, or psychiatric disorders which in the opinion of the investigator would be expected to interfere with the study or increase risk to the subject.
• •Participation in any other investigational diet study within 90 days prior to study entry.
• •History of a medical or psychological condition or social circumstances that would impair the subject's ability to participate reliably in the study.
• •Use within the last six months of medications that can result in significant weight gain or weight loss, including antipsychotics, selective serotonin reuptake inhibitors, anti-epileptic drugs, appetite-suppressants such as phentermine and sibutramine, and the lipase-inhibitor orlistat.
• •Active eating disorder
• •History of alcoholism or substance abuse within 5 years prior to study entry.
• •Use of a dietary supplement or medication that decreases calcium absorption
• •History of kidney stone, hyperparathyroidism or sarcoidosis
• •High calcium intake (more than 2 servings of dairy products per day or taking calcium supplements \> 3x/wk ) for 1 month prior to study start date and for duration of study. (If participant is taking calcium supplement \> 3x/wk or more than 2 servings of dairy products per day, they are eligible to participate if they agree to stop for 1 month prior to study start date and for the duration of the study. Participants will similarly be asked to stop multivitamins as the majority of these supplements contain calcium.)