Fasting

Willing abstinence from, or reduced consumption of, food and/or drink

Fasting is abstention from eating, and sometimes drinking. However, from a purely physiological context, "fasting" may refer to the metabolic status of a person who has not eaten overnight, or to the metabolic state achieved after complete digestion and absorption of a meal. Metabolic changes in the fasting state begin after absorption of a meal.

This keyword could refer to multiple things. Here are some suggestions: