Plant extracts and chemical compounds, namely, 3-hydroxybutanoic acid / beta-hydroxybutyrate and chemical compounds derived there from for use in the manufacture of dietary supplements, nutritional supplements, nutraceuticals and pharmaceuticals, for use in research and product development by biotechnology companies, universities and research institutions, and for use as an ingredient in the manufacture of foods, beverages, cosmetics and health care products, namely, diet and weight loss pill...