Role of Grit in Finch Diet

Grit
Why does my Finch need "Grit"?

Obviously, finches don't have teeth. The grit helps break-up the food in the crop and gizzard therefore aiding digestion. Plus, much grit has calcium that has a further nutritional benefit. The following are discussions on the topic of the role of grit in your finches' diet.

Soluble vs. Insoluble Grit

The second article below, by Matthew M. Bond, DVM, raises some debate about whether grit is necessary for smaller birds and distinguishes between soluble grit, such as cuttlebone, oyster shell which the bird can digest and provide nutritional supplements and insoluble grit.

Kaytee Hi Cal Grit
Nutritional supplement and digestive aid for small and large birds.