Vitamins facilitate metabolic activity and growth. Minerals are the building blocks for bone and muscle. A balance is required for healthy growth. Calcium, phos., D3 and vitamin A are important players in bone health and other systems and need to be in balance.
Vitamins and minerals are best supplied through diversity in food groups. But few of us can supply all the different types of insects available to a chameleon in its natural habitat. And most of the insects one can buy have...