Hi! I feed my degus a mix of nuggets, seeds, dried and fresh plants/veg. I live in the UK and use the degu nuggets sold by Pets at Home,these make up about half of their regular food. In the wild seeds make up up to 60% of their diet so the other half of their regular food is a mix of seeds,flaked oats and dried plants. Degutopia has a good overview with a bit more information than I have here.
I feed my degus twice a day, once in the cage where all of their food is spread out so they have to forage for it and once when they’re out for their run where I hand feed them the nuggets and then spread out the seeds in the cage afterwards. I use the hand feeding as a chance to handle them, to reinforce a positive connection with me and also to train them.
I also give them each a pea flake and corn flake (not to be confused with the breakfast cereal!). The pea flakes come in handy if I need to check an injury or something as the flakes are quite big and the degus need to use both paws to eat it so it helps to keep them still.
I also give my degus fresh herbs and vegetables several times a week. Some vegetables should be fed less regularly due to their higher sugar content and the degus’ predisposition to diabetes.
Other treats I use include puffed rice which can be fed regularly and can be found in health food shops or the free from section in the supermarket, it’s sold as a cereal, just make sure you get the plain one. I can only speak for the UK, I don’t know how common it is in other countries. Occasional treats (1-2 a few times a week) include pumpkin seeds and sunflower seeds. Rare treats (once a month) include nuts, I usually give my degus a hazelnut. If you give them the nut still in the shell it provides them with a challenge to get in to it (especially with nuts which roll away easily) and it wears down their teeth. They also get occasional dried rosehips which are high in vitamin C but should only be fed at most one a week.
If I want to give the degus something new I will google for ‘degu safe [insert food]’ (this is literally half my search history)and I will cross-reference three different sources to make sure that it’s definitely safe. This may be overkill but I’d always rather be safe than sorry. Even though some lists of degu safe foods include fruits I would personally never feed my degus any fruit because of the sugar content.
Degus should also have constant access to hay, this will help to wear down their teeth and provide fibre. Lack of hay can lead to overgrown teeth, diarrhoea and digestion problems. Given the wording of your question I’m sure you know this but there may be people who are thinking about getting degus who might use this answer as a guide so I want to cover everything.
There are people who feed their degus a diet of whole plants and seeds as this is closer to what degus would eat in the wild,I don’t find it very practical but it may be something you want to look in to,
Please don’t apologise, I love getting questions! (Although it is a shame that I’m the only degu blog) Please feel free to get in touch if you have any more questions or if you want to let me know what your degus make of their new treats.
I’ve probably given you more information than you were after here but once I start talking about degus I find it difficult to stop.