Nature’s Sources, LLC is located in Niles, Illinois just outside of Chicago and was founded by Mr. Lee Frank on August 1, 1995 for the purpose of producing the very first 100% plant-based human digestive enzyme formula in the USA, called AbsorbAid®. Previously, enzyme formulas were available solely on a limited basis for animals only by its then sister-company—Prozyme, LLC.

AbsorbAid® digestive enzyme formulas are sold widely throughout the United States in over 8,000 retail establishments, including, Health Food Stores, large chains as well as independents, pharmacies, and grocery stores with wide distribution as well through giant distributors such as UNFI and Threshold. AbsorbAid® is also available overseas in parts of Asia, Singapore, England, and Israel with China, and Indonesia poised to distribute to over 4000 retail locations, and Chile on the horizon.

Nature’s Sources AbsorbAid® prides itself on manufacturing the only clinically tested and scientifically proven digestive enzyme formula on the market today; no competing companies we know of can make that claim. AbsorbAid® has been tested and shown to promote the absorption of vital nutrients by up to 71% as stated by two prestigious laboratories, Roche and Mayo Clinic. AbsorbAid® was also tested in nursing home trials, being added directly into feeding tubes with great success –proving there was an increased rate of absorption of amino acids with assured safety.