Here's why:
* High in oxalates: Mint contains oxalates, which can bind to calcium in the body and potentially lead to kidney stones.
* Can cause digestive upset: Large amounts of mint can upset a guinea pig's digestive system, causing diarrhea or vomiting.
* Not a necessary nutrient: Guinea pigs don't need mint to thrive. Their diet should consist of primarily hay, with fresh vegetables and a small amount of pellets.
Safe Alternatives:
* Other herbs in moderation: Parsley, cilantro, and dill are safe for guinea pigs in small amounts.
* Safe vegetables: Bell peppers, spinach, romaine lettuce, and carrots are good choices.
* Hay: Timothy hay should make up the bulk of their diet.
If you're unsure about a particular food, it's always best to consult with a veterinarian or a knowledgeable guinea pig expert.