Absorptiometry, Photon Adipose Tissue--metabolism Adolescent Adult Aged Animals Blood Glucose--analysis Blood Pressure Body Composition Body Mass Index Cardiovascular Diseases--etiology Cardiovascular System--metabolism Diet Energy Intake Feeding Behavior Female Humans Insulin--blood Lipids--blood Male Meat Middle Aged Motor Activity Overweight--complications Pilot Projects Risk Factors Surveys and Questionnaires Swine Waist Circumference Weight Loss Young Adult