My wife and I were eating Barley as a substitute for rice with Sambhar or Rasam for 6 months, a few years back. Not only we dropped a lot of weight but also became very healthy. Our blood work came out excellent. You can't eat much with Barley but at the same time, you can taste our regular Sambhar and veggies. It is cheating the mind to accept Barley in place of rice. Now my MIL is here and somehow we have convinced her to eat Brown rice instead of white rice.