Can Guinea Pigs Eat Onion?

Iceberg lettuce is not a good choice for guinea pigs as it is low in nutrients and can cause digestive upset. While lettuce is generally a safe and healthy food for guinea pigs, iceberg lettuce is not a good option because it is mostly water and has very little nutritional value. In fact, iceberg lettuce can actually cause digestive problems in guinea pigs because it can interfere with their digestion of more nutritious foods. Better options are Red or Green leaf lettuce, Bibb lettuce, Boston lettuce, Romaine lettuce, etc.

No, potatoes are not suitable food for guinea pigs and some potatoes can be toxic. They are not a natural part of their diet and can cause digestive problems if fed to them in large amounts. Potatoes are also high in starch, which can contribute to obesity in guinea pigs

Marrow is safe for Guinea Pigs to eat but it is low in nutrients and is mostly composed of water, which can lead to digestive problems in guinea pigs if consumed in large amounts. Best avoided in favour of vegetables like broccoli, carrots, bell peppers, and leafy greens such as lettuce and spinach.

It is not recommended for guinea pigs to eat leek, as it can be harmful to their digestive system. Guinea pigs have sensitive digestive tracts, and leek is high in oxalates, which can cause bladder stones and other health problems in guinea pigs.

Cassava, also known as yuca or manioc, is not a common food for guinea pigs. While it is not toxic to guinea pigs, it is not a good source of nutrients for them and should not be a regular part of their diet. Guinea pigs require a diet that is high in fibre and low in sugar, and cassava does not meet these nutritional needs.