Participants will arrive at the testing center after an overnight 12-h fast. Upon arrival, body weight will be taken and a catheter will be inserted in an antecubital vein. The participant will then rest for 30 minutes, after which resting metabolic rate (RMR) will be measured using an indirect calorimetry cart. RMR will be measured over a 45-min period. At the end of the RMR measurement, a fasting blood sample will be obtained, and the participant will be given a standard breakfast (containing 20 g of fat from either test blend 3.2 or corn oil) to consume over a 10-min period. The fat in the breakfast will be provided in test muffins. The test breakfast will provide 35% of the participant's daily energy requirements, estimated using the Schofield equation. The muffin will provide 450 kcal and the rest of the energy will be provided in the form of fat free yogurt, up to 140 kcal, and applesauce.