The present invention relates to nutritional supplements to the human diet used to increase levels of high density lipoprotein (HDL) and calcium ions, and decrease levels of free radicals and glucose in human blood plasma. More specifically, the present invention teaches novel nutritional supplements which comprise a novel combination of specific antioxidants, barley grass extract, specific multiple vitamins and minerals, and ginkgo biloba extract, as well as methods of preparing the nutritional supplements.