Walk into one of 143 King Soopers supermarkets in Colorado, New Mexico, Utah and Wyoming, and you'll find nutritional rating numbers on the shelves, right next to the prices.

Since October, the grocery store chain, a division of Kroger, has included nutrition ratings by NuVal, one of the nation's largest rating companies.

"It's been very well-received by our customers," said Kelli McGannon, a spokeswoman for King Soopers. The company, she said, also has begun staffing its stores with dietitians to help consumers understand NuVal, and to help with other dietary concerns.