Eating lightly; cutting down on food. Reducing the amount or frequency of eating for saving, dieting, or health reasons.
夏は暑さで食欲が落ちるので、自然と節食になることが多い。
In summer appetite often drops, so people naturally end up eating less.
試合前は体重を落とすために選手が節食することがある。
Before matches, athletes sometimes restrict their eating to lose weight.
無理な節食を続けると健康を害する恐れがある。
Continuing extreme dieting may harm your health.