In some cases, this may involve taking vitamin or mineral supplements. Keto Wave is the source of our energy to perform various activities. Our body can’t store large amounts of glucose as we have only a 24-hour supply. When a child fasts for 24 hours, his or her glucose stores get depleted. A child who has to start on a ketogenic diet usually fasts for about a day. When no more glucose is available to provide energy, the child’s body begins to burn stored fat.