 This study also aims to study the effect of plant sterols on fasting total cholesterol, HDL-cholesterol concentrations and Lipoprotein a. Furthermore the effects of plant sterols on fasting blood glucose and insulin will be explored. At last, in a sub-group, at end of intervention the acute, chronic and acute upon chronic effect of plant sterols on postprandial blood lipids, glucose and insulin responses during a mixed meal challenge rich in fat and carbohydrates will be explored. 