This Callitrichid Gel diet is made specifically for Marmosets and Tamarins. It offers a unique way to provide complete nutrition and moisture in a palatable soft moist mixture that marmosets love. It is an essential part of your baby's diet. This extra fine diet with extra Vitamin D3, reduced starch, high fiber, high protein diet is highly fortified to meet the needs of Marmosets and Tamarins. Gel is to be fed with healthy veggies, fruits and biscuits as a big part of your baby's diet for the rest of its life. We recommend that you add a little to their favorite foods at first. Then add more as they develop a taste for it.