KAYTEE Timothy Complete is a nutritionally fortified daily diet made with fiber-rich, sun-cured Timothy Hay combined with other essential ingredients necessary for your Guinea Pig.?Timothy Hay Provides: High Fiber Daily Diet, Supports Digestive Health Made with Natural Timothy Hay and Added Vitamins & Minerals Packed with Vitamin C Long Strand Hay High fiber for essential digestive health Lower protein & calcium levels to decrease the likelihood of urinary tract problems