Following reports that Coca-Cola is backing a network that urges people to exercise more and worry less about slashing calories, one of the group's scientists is firing back.

James Hill is the president of the Global Energy Balance Network, a group funded in part by an unrestricted gift from Coca-Cola, which donated $1 million to the University of Colorado Foundation where Hill works and another half a million to the University of South Carolina, another member of the network.