Children have various stages of food rejection in their childhood where they do not eat for periods of time.
Try to give a variety of food. The same food will not insight curiosity. Don't give snacks/biscuits/junk food.
Note : Unfortunately, there is no food-desiring tonic available.
We can go over various ideas in a detailed consultation.
Next Steps
Give a variety of food, home-made healthy snacks.
Health Tips
Keep trying, don't give up.