Seaweed and tomatoes are natural sources of MSG. In fact the
original extract of MSG came from Seaweed. So if you eat a tomato,
you are eating MSG. Without MSG food tastes bland. There are
glutamate receptors on the tongue that recognize glutamate and
register the taste as umami.
It would be more accurate to say that the food we eat at hawker
centres contains lots of added MSG.
