By Alex Dobuzinskis LOS ANGELES (Reuters) – Bears in Yosemite National Park in California have adopted the wildlife version of a health food diet after increased safety measures largely blocked them from scavenging for food in campgrounds over the last 15 years, a study showed on Tuesday. An estimated 350 to 400 black bears roam Yosemite, one of the most popular U.S. tourist destinations. Interactions between the park’s bears and people reached a record level in 1998 as the animals raided campgrounds and broke into cars in search of groceries and leftovers, according to Yosemite spokesman Scott Gediman. After recording 1,584 human-bear interactions that year, the park east of San Francisco adopted a policy in 1999 that included placing bear-resistant food storage containers at campgrounds and cracking down more forcefully on people leaving out items like chips or bread, Gediman said.