The Use Of Boron In Testosterone Boosters One ingredient gradually finding its way into health supplements is Boron.. A dietary mineral that is commonly found in certain foodstuffs. Natural sources of Boron include Parsley Flaked Onions Avacado Cherries Peaches Flour Grape Juice Broccoli stalk   It can be found to lesser degrees in Rice Spaghetti … Read moreBoron