Metametrix Clinical Lab - www.Metametrix.com - This site provides a wealth of information about the various nutritional tests they offer. Tests of particular interest to Dr. Hall include

• Blood Spot Fatty Acid Panel
• Urine Organix Panel - comprehensive
• GI Effects Panel

Spectracell Labs - www.spectracell.com - This company offers an expanded Lipid Panel as well a a comprehensive nutritional panel called the FIA which includes the Spectrox - a functional antioxidant panel.