Also, SG's are very thin. A big contrast to Americans.
Another point: SG seems to have crazy-lax food service regulation compared to USA. Hawker centers are everywhere. Many make a living serving delicious, inexpensive foods this way. I would propose there is little to nothing to show for some of the US's hyper-aggressive food regulations leading to governments pouring bleach on food, or private charities holding secret events to help homeless people in America.