Going meatless may soon get easier, even for the most devoted carnivores. Silicon Valley has become a breeding ground for man-made steaks and seafood--even veggie burgers that “bleed”-- and a host of companies betting that convincing flavor and texture can win over America’s meat-loving consumers. Proponents say that these animal-free alternatives can protect the environment and feed our growing population, but many people still struggle with the “ick factor” of lab grown meats. And are they really more healthy?