Their food is rich and high in calories. However, as a very disciplined people, the Japanese eat until NEARLY full. Their portions are based on the average human’s needs rather than their wants. You will almost never see a Japanese person unbuttoning their top button, slumping down in their chair and pleading for someone to rub their tummy! They stop when they start to feel they are edging on fullness, then they wash it all down with a gulp of Sake.