Food companies are looking to cash in by selling healthier products. "A wave of products expected to hit grocery stores in the next year will raise the ante for shoppers' attention and compete for their trust. What constitutes 'healthy' will ultimately be decided by consumers at the cash register. Several efforts are springing forth from Chicago. Purchase, N.Y.-based PepsiCo has established a global nutrition group in the West Loop, headed by the company's chief scientific officer. Among other initiatives, the company is testing a reduced-sodium salt for eventual rollout in its savory snacks."