To feed these kitten is the only way to make them silent. The presence of constant hunger in cats is called polyphagia. Moreover, the term implies a disorder of food behavior, if prior to the occurrence of such symptoms was all right.
This does not apply to those animals whose owners simply underfeed their Pets, not really paying attention to them and don’t care about them. Gluttony manifests itself in young and active animals that consume too much energy. For replacement of energy requires a greater amount of nutrients.
Possible assistance will be vitamin and mineral supplements to your daily diet. Perhaps they are not enough youngsters, and to obtain the necessary amounts of vitamins, the cat tries to eat twice the normal serving.