Organic food has become mainstream but still has room to grow

  Organic food once was viewed as a niche category for health nuts and hippies, but today it’s a routine choice for millions of Americans. For years following the passage of the Organic Foods Production Act of 1990, which established national organic standards, consumers had to seek out organic products at food co-ops and farmers markets. Today over half of organic sales are in conventional grocery store chains, club stores, and supercenters; Walmart, Costco, Kroger, Target, and Safeway are the top five organic retailers.