GNC is the world's largest chain of specialty vitamin, mineral, herbal, and sports nutritional supplement retailers. Our first store was opened in 1935 in Pittburgh by David Shakarian. Originally called "Lackzoom," the GNC (General Nutrition Center) name was born in 1960. We started selling our own ranges of vitamins and mineral supplements later that decade. GNC only uses the best ingredients and employs rigorous quality assurance testing and manufacturing standards. We subject our products to up to 150 quality checks before they arrive on our store shelves and all our ingredients are issued with a Certificate of Analysis.