Addition of Phytosterols to a Low Phytosterol Diet

Inclusion Criteria: Men and women are eligible who: * are of any race or ethnicity between 18 to 80 years of age; * are in generally good health; * have moderately elevated blood cholesterol(LDL cholesterol between 100 and 189 mg/dl) * will eat only the foods that are provided by the center during the diet periods; * will drink no more than 5 cups of caffeine-containing beverages a day; * will consume no more than 1 alcoholic drink a day; * will abstain from the consumption of alcohol for 48-hours prior to blood draw days Exclusion Criteria: * are younger than 18 or older than 80 years; * have very high cholesterol(LDL cholesterol equal to or above 190 mg/dl or triglycerides equal to or above 250 mg/dl); * have very high blood pressure(equal to or above 160 mm Hg systolic or 95 mm Hg diastolic); * are overweight( BMI greater than 35 kg/m2) * are taking lipid-lowering, or any other medication known to affect blood cholesterol; * have diabetes mellitus, cancer, heart, liver and/or kidney disease, or chronic disease that might interfere with participation;