I share with you a tip I discovered during my 10day vipassana meditation course last month.
Next time you are eating something, after putting the food in your mouth, pause for half a second and ask your tongue not to taste it!
You will notice that then the body goes in an auto mode of chewing properly(as its supposed to). Tongue will then do it’s job of producing saliva and pushing food under the teeth and not just be involved in taste.
Body knows it has to chew, if food is in the mouth, no need to make it a voluntary activity, let it happen as an involuntary function. We eat with our ego which is all about pleasuring five senses and hence get unhealthy eating habits.