Pinto plant (IMAGE) American Society of Agronomy Caption Pinto beans are a nutritious legume crop. The beans provide protein, fiber, and micronutrients. Credit S.V. Fisk Usage Restrictions For use with this story only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.