One of the most compelling emergent business opportunities of the new millennium is catering to consumers who look to commercially available foods to manage their diet, health, and vitality. These “self-care shoppers” are an affluent and growing force in the marketplace, as a result of rising media attention to health-related issues, greater access to diet and health resources, especially via the Internet, and an aging population (see this month’s Developing Foods Special Report beginning on p. …