A specially formulated oil seed and nut based natural product composition useful in lowering total serum cholesterol and low density lipoprotein levels and increasing high density lipoprotein levels in humans. The composition is preferably formed by heating a variety of types of oil seeds and nuts at a predetermined temperature and for a predetermined period of time, categorizing the individual types of seeds and nuts into individual sets, grinding the seeds and nuts in each set into a meal, and combining the meals from each set to form a single composition.