Sesame seeds may be the oldest condiment known to man. They are highly valued for their oil which is exceptionally resistant to rancidity. Not only are sesame seeds a very good source of manganese and copper, but they are also a good source of calcium, magnesium, iron, phosphorus, vitamin B1, zinc and dietary fiber. In addition to these important nutrients, sesame seeds contain two unique substances: sesamin and sesamolin. Both of these substances belong to a group of special beneficial fibers called lignans, and have been shown to have a cholesterol-lowering effect in humans, and to prevent high blood pressure and increase vitamin E supplies in animals. Sesamin has also been found to protect the liver from oxidative damage. Traditional societies have touted the positive benefits of this seed for thousands of years. Sesame seeds are very high in calcium, magnesium, zinc, fiber, iron, B1 and phosphorus, sesame seeds are unique in their chemical structure. Possessing important cholesterol-fighting fibers known as lignans, studies show that these seeds can lower blood pressure, as well as protect the liver from damage. Sesame seeds also may help prevent many health problems, including PMS. Sesame for a Healthy Heart. The rich seed contains linoleic acid, an omega-6 fatty acid that may help control harmful cholesterol