GNC Performance & Vitality Vitapak Program: With Clinically Studied Multivitamin Blend^ Achieve your daily nutritional goals with customized ingredients plus a multivitamin with more than 30 clinically studied ingredients. Men's Health: Contains a clinically studied multivitamin shown to work better than the basic multivitamin^ Antioxidants: Packed with antioxidants for cell protection and immune support.* Circulation: Features resVida, which is clinically shown to significantly enhance blood vessel dilation.^In a randomized, double-blinded, placebo- controlled study of 112 healthy volunteers, subjects taking the GNC vitamin and minerals blend for six weeks experienced significant improvements in serum levels of certain key ingredients compared to placebo and a basic multivitamin formula based upon multivariate statistical analyses of a group B vitamins and key. Statistical improvements in SF-36 Vitality and Mental Health scores were observed and also observed compared to placebo. ♦In a randomized, double-blind, placebo-controlled crossover study, 19 volunteers consumed 3 does of resVida (30 mg, 90 mg, 270 mg) and a placebo at weekly intervals. Flow-mediated dilation (FMD) of the brachial artery was measured one hour after ingestion of each treatment and was significantly increased at all 3 doses relative to placebo. 30 mg of resVida demonstrated 2.5% greater increase in FMD relative to placebo.
