Voracious

Voracious - Wrath James White How far would you go to lose weight? Doctor Trevor Adams has created a genetic weight-loss treatment using pygmy DNA. These creature don't store fat and need to eat every two hours. The procedure works a little too well and the patients start to experience extreme side effects. Doctor Adams didn't realize just how much the DNA would mutate the host. They're starving and it doesn't matter what they consume. Their appetite is Voracious.

A blood-filled, flesh-eating, violent read. The best "what if" writer of the fictionalized human condition.