Is grass bad for guinea pigs?

Grass is not bad for guinea pigs, in fact, it's an essential part of their diet. Guinea pigs are herbivores and their digestive system is designed to process large amounts of plant matter. Grass is a good source of fiber, which is important for keeping their digestive system healthy. It also contains vitamins and minerals that are essential for guinea pigs' overall health.

However, not all grass is created equal. Some types of grass, such as Bermuda grass, can be harmful to guinea pigs if they eat too much of it. Bermuda grass contains high levels of oxalates, which can bind to calcium in the body and prevent it from being absorbed. This can lead to health problems such as kidney stones and bone problems.

It's best to feed your guinea pigs a variety of different types of grass to ensure they are getting all the nutrients they need. Some good options include timothy hay, oat hay, and orchard grass. You can also feed your guinea pigs fresh grass from your yard, but be sure to avoid any areas that have been treated with pesticides or herbicides.

If you're not sure what type of grass is best for your guinea pigs, talk to your veterinarian.