Pollen is the male seed of flowers that enables flowering plants to reproduce. Pollen grains contain all substances necessary to create new life within the world of plants, and thus, are the basis for the food chain on land masses. Without pollen, there would not be trees, flowers, or vegetation. Pollen is known to hold a wide variety of nutrients, including vitamins, minerals, amino acids, RNA, and DNA building factors, plant hormones, antioxidant factors, enzymes, unsaturated fatty acids, prostaglandin precursors, phytosterols and more. Approximately 3% of pollen's makeup is unknown and has been described as its mysterious "life force".