IT’S easy to make fun of people in big cities for their obsession with gluten, or chia seeds, or cleanses.

But urbanites are not the only ones turning away from the products created by big food companies. Eating habits are changing across the country and food companies are struggling to keep up.

General Mills will drop all artificial colors and flavors from its cereals. Perdue, Tyson and Foster Farm have begun to limit the use of antibiotics in their chicken. Kraft declared it was dropping artificial dyes from its macaroni and cheese. Hershey’s will begin to move away from ingredients such as the emulsifier polyglycerol polyricinoleate to “simple and easy-to-understand ingredients” like “fresh milk from local farms, roasted California almonds, cocoa beans and sugar.”

Those announcements reflect a new reality: Consumers are walking away from America’s most iconic food brands. Big food manufacturers are reacting by cleaning up their ingredient labels, acquiring healthier brands and coming out with a prodigious array of new products. Last year, General Mills purchased the organic pasta maker Annie’s Homegrown for $820 million — a price that was over four times the company’s revenues, likening it to valuations more often seen in Silicon Valley. The company also introduced more than 200 new products, ranging from Cheerios Protein to Betty Crocker gluten-free cookie mix, to capitalize on the latest consumer fads.

Source: By HANS TAPARIA and PAMELA KOCH