Turning plants into workout supplement bio-factories

It's important to eat your veggies, but some essential vitamins and nutrients can only be found in animals, including certain amino acids and peptides. But, in a proof-of-concept study, researchers developed a method to produce creatine, carnosine and taurine -- all animal-based nutrients and common workout supplements -- right inside a plant. The system allows for different synthetic modules to be easily stacked together to boost production.