bud and bud light are both rice based.
I was talking with a friend about beer. He was telling me that he loves beer, but it made him feel allergic like the way sake makes him feel, so he doesn't drink beer any more. I asked what beer he used to drink. He listed off the usual canoe beer suspects, saying Bud was his favorite. I bought him a Kona Lavaman and asked him to try it. He did, loved it and had no bad reaction. .
I asked him if he is allergic to rice. He said yes, that's why he gave up sake. I directed his attention to the Bud label (on a mirror behind the bar) which states, "Brewed by our original process with the choicest hops, rice and best barley malt."
Now he is back to being a happy beer drinker, drinking only all malt beers.