They don't. But stars do produce Beryllium, Carbon and Oxygen.Stars start with Hydrogen, which undergoes atomic fusion, andproduces Helium. As helium builds up in the sun's core, otherfusion reactions occur. Over time, two or more helium nuclei canfuse, forming beryllium. Another helium nucleus can fuse with aberyllium nucleus, forming carbon, and so on. Stars the size of thesun do not contain enough energy to produce elements heavier thanoxygen.