Weegy: New hypothesis should be tested by saying that Beri-beri is caused by eating whole grain rice.
- One of the scientists, Dr. Eijkman, noticed something. [ Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case. he found that polished rice lacked thiamine, a vitamin necessary for good health.