Explore the Use of Cortical Oxygenation Measures in Nutrition Research

The products (investigational and placebo) consists of three capsules that should be taken with water at two separate visits, with a wash-out period in between. The placebo product will comprise of microcrystalline cellulose (bulk). The investigational products will contain either caffeine and microcrystalline cellulose or caffeine, L-Arginine, and microcrystalline cellulose.