Older cats (usually older than about 12 years old) become a bit slower and take less exercise than younger animals, which puts them at risk of becoming greasy. Teeth deteriorate or fall out, making the absorption of food more difficult. Also, we notice that the digestion requirements of older animals are higher. They are more likely to suffer from vomiting or diarrhea with ethnic cuisine or may get constipation. Also, the absorption and use of (essential) fatty acids changes, which is visible in the coat. This can become a bit stiffer and less shiny. Special feeds have been developed for the senior cat. The size of the kibble and the composition has been adapted for the older animal. Sometimes unique ingredients are added, which play a role in preventing or counteracting fatty deposits, joint problems, or problems with digestion.