By Sibel Tinar, Contributing Reporter
RIO DE JANEIRO – On almost every street in Rio de Janeiro restaurant signs that say "comida por quilo", (food per kilogram) indicating that food is sold by the kilo regardless of its kind, arouse curiosity in many first time visitors more used to eating by the menu rather than by weight.
Even more frequently encountered in commercial areas in which they compete by lowering the prices to attract more people at lunchtime, these restaurants offer a large variety of dishes, both Brazilian and exotic. They are usually no-frills, always self-service places . . .