Assessing 5 different milk derived proteins versus placebo for appetite regulation and satiety, delivered via shake vehicle.

Assessing 5 different milk derived proteins versus placebo for appetite regulation and satiety, delivered via shake vehicle. Subjects will attend a 5 hour post-prandial study day. Subjects will keep food records 1 and 3 days prior to study visit, day of visit, and day after visit; food to be weighed using study provided dietary scale.

Inclusion Criteria:

• Healthy
• Unrestrained (score ≤ 10 on the Eating Inventory (EI) questionnaire, Stunkard and Messick 1985)
• Women
• 18 years of age
• Consume a low/moderate protein diet (12-20% protein energy).
• Meet BMI criteria of 19 to 24 kg/m2 OR 29 to 34 kg/m2, inclusive.

Exclusion Criteria:

• Women who score ≥ 10 on the Beck Depression Inventory (BDI, Beck and Beamesdorfer 1974)
• Women who score ≥ 30 on Eating Attitudes Test (EAT, Garner and Garfinkel 1979),
• Have current or past (previous 1 year) medical conditions that may interfere with any of the outcomes of this study.
• Weigh less than 110 lbs
• Are currently or have been modifying diet or exercise patterns to gain or lose weight in previous 60 days
• Have unstable body weight (fluctuations of ≥ 5 kg in 60 day period)
• Are excessive exercisers or trained athletes
• Taking any medications that would affect appetite or any other study-described endpoint will also be excluded.
• Allergies or intolerances to foods consumed in the study.
• Smoker
• Pregnant/lactation