Saturday, June 17, 2017

Ask a guinea pig: Are lime peels safe for guinea pigs?

It's time for another installment of our Ask A Guinea Pig feature! Andi Rogynous asks: "Columbia doesn't like limes either, but she did eat the rind. do you know if that's safe?"

Thanks for the question, Andi. It's always good to do your research before feeding something questionable to your piggy. As you know, we did a review post on limes a while back, which included the rind. Of course, we hated limes and barely touched them, so eating the rind was a bit of a moot point for us. Still, just in case there are some piggies out there who feel differently, let's dig into this lime peel issue.

Research has shown that citrus peels are "a good source of molasses, pectin and limonene," and have lots of health benefits. Lime peels in particular are a good source of fiber compared to other citrus peels:
Of course, this seems to be human nutrition research, and doesn't necessarily mean that guinea pigs should have it. We've read that a study showed that limettin, a substance found in lime peel, was not found to be toxic to guinea pigs, but haven't seen any other research specifically on guinea pigs and lime peels.

However, we also know that guinea pigs can eat the rinds of other citrus fruits. For example, guineapigcages.com's food chart has orange peel listed as a 2-4 times per week food. In addition, when asked about lemon peels, their diet expert said: "The rind can be fed in small quantities as well."

In addition, we found a thread on the Guinea Pig Forum where someone fed their guinea pig a small lime slice, peel intact, and no one on the forum raised this as an issue:
Image source: PiggieWigs12 on the guinea pig forum; caption: "so apparently special needs Norman loves limes but especially loves lemons!"
Therefore, although the evidence is not 100% ironclad, we're going to say that lime peels are probably safe to feed occasionally (assuming your piggy actually likes them!). However, we should note that limes may have waxy coatings added to them, and should therefore be organic and cleaned very thoroughly. In addition, citrus peels may be high in oxalates, and should therefore only be fed in small quantities.

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