Pros and cons of antioxidants

scientificblogging.com — In the U.S. more than $20 billion was spent on dietary supplements in 2005. Over $7 billion was spent on plant-based herbal dietary supplements such as grape seed extract,ginseng and biloba extract. Researcher Dr. Susanne Talcott of Texas A&M is looking into how useful phytochemicals, including antioxidants and herbal supplements, can be.