Explanation
In South Korea, refusing food offered by a host, especially during a family meeting, is generally considered impolite if done outright. However, it is customary to initially decline once or twice as a sign of humility before accepting, as this shows respect for the host's generosity.
Local Tip
If you must refuse for dietary or health reasons, politely explain with a slight bow and say '아니요, 괜찮습니다' (No, I'm fine) while gently patting your stomach to indicate fullness.
How it compares elsewhere
Similar to Korea, it is polite to initially refuse but eventually accept; outright refusal can be seen as rude.
Refusing food offered by a host, especially in a family setting, is often considered very disrespectful as hospitality is highly valued.
It is generally acceptable to politely refuse food if you are full or have dietary restrictions, as long as you compliment the host's cooking.