HUNGRY AS A BEAR Now that’s hungry. “In fall when salmon first arrive in the streams and grizzlieseat more than 100 pounds of blubber and meat in a day. So if you have friends who eat like polar bears, you might tell them to watch their cholesterol. And remind them that about 80 percent of the grizzly bear’s diet is made up of plenty of greens, fruit and tubers—some 200 plant species in all.