You decide your fasting plan and how many meals to eat.
For example, if you follow the 16:8 routine, it’s common to have two meals a day with skipping the breakfast or dinner.
12:12 plan: 3 meals
14:10 plan: 3 meals or 2 meals & 1 snack
16:8 plan: 2 meals & 1 snack
18:6 plan: 2 meals
20:4 plan: 2 meals or 1 meal & 1 snack