There was a hunger issue not long ago where Bedrock hunger was adjusted for parity with Java and the hunger was depleting incorrectly. This is back except that this time it only seems to be used up at a very high rate AFTER the first hunger bar is depleted. After that all other hunger stages go VERY quickly.

To recreate simply login to a Minecraft world. Start with your hunger bar full simply walking or do some tasks to go through the first hunger bar. Then observe how fast all subsequent hunger bars are depleted without doing anything like jumping, fighting mobs, taking damage etc. Just walking around the hunger will go down VERY Quickly causing the player to need / use an inordinate amount of food.