Clinical Research Directory

Inclusion Criteria: * 18-30 years old, or 50-75 years old (at time of screening) * Body mass index (BMI) \< 30 kg/m2 * Willing to consume whole eggs, egg whites, or egg yolks on a daily basis during study periods, and refrain from eating eggs during other study periods * Do not fit any exclusion criteria Exclusion Criteria: * \< 18 years old; 31-49 years old; \> 75 years old * BMI ≥ 30 kg/m2 or body weight \< 110 pounds * Weight changes \> 10% over the last 4 weeks * Self-reported history of diabetes, heart disease, stroke, renal or liver disease, cancer, eating disorders, certain severe and/or relapsing/remitting autoimmune, inflammatory, or metabolic diseases, chronic infections, scleroderma, blood clotting disorders, intravenous drug use, or current pregnancy or lactation * Allergy or intolerance to eggs, egg components, or egg products * Implanted medical device (e.g., pacemaker) or other health condition that would prevent measurement of body composition by bioelectrical impedance * Highly elevated fasting lipid and glucose levels (triglyceride levels higher than 500 mg/dL, fasting glucose higher than 126 mg/dL), or total cholesterol \< 120 mg/dL and HDL-cholesterol \< 15 mg/dL * Currently taking lipid-lowering medications (e.g. statins, fibrates), anti-inflammatory medications (e.g., NSAIDs, corticosteroids), or medications that primarily affect blood clotting (e.g., warfarin)