Thorne’s Zinc Picolinate 30 mg (60 capsules) are NSF Certified for Sport®. Zinc is essential for growth, immune function, testosterone metabolism, and numerous other functions in the body. Zinc is involved in more than 200 enzymatic reactions and plays a key role in genetic expression, cell division, and growth. Clinical studies demonstrate zinc supplementation can increase general wellness, and that it has a beneficial impact on connective tissue, as well as reproductive and eye health. However, not all zinc supplements are absorbed efficiently by the body. Picolinic acid is a natural mineral chelator produced from the amino acid tryptophan in the liver and kidneys, and then transported to the pancreas. During digestion, the picolinic acid is secreted from the pancreas into the small intestine, where it binds to minerals, such as zinc, to facilitate the mineral’s absorption.