
Rat diet!
December 3, 2007People often ask me what I feed my rats. They live around 3-4 years on the diet I feed them these days, which exceeds the average of 2 years by quite a bit. They also seem to get fewer tumours than others. So, what’s the secret? Nothing specific, and nothing too secretive… A wholefood vegan diet is basically it! I think there are 3 major contributing factors to improved rat health. I feed my ratkids more organic fresh fruit and vegetables, primarily human-grade food, and nothing high in hormones, carcinogens, animal protein, or fat (ie. no animal products!). & yes, I looked up rat nutriment requirements, and this meets them easily. Exceeds them, even. Copper, zinc, B12, protein – it’s all there. DON’T PANIC! Enjoy. My rats do!
Every day my rats get a “salad” consisting of vegetables and fruit, organic or fresh from the garden where possible. This is their major food source. Many people feed their rats primarily on grains. Full-grown rats do not need as much protein as growing rats (under 6 months of age). Excess protein in a diet contributes to tumour growth. So you don’t want that. ALL plant food contains protein, but as rats require more protein that humans, a rat shouldn’t be fed on fruit and veg alone, but a rat fed on fresh produce with some grains and beans on the side does perfectly fine. Better than fine, even. My rats are sprightly and healthy, with shiny coats. Our vet is impressed with their longevity and health.
ANYWAY. Enough ramble. There is no comprehensive rat food on the market. If you want a healthy rat, you have share your own food with them, not buy them processed crap. So… The happy rat diet? Here it is.
Fresh Food Requirements – per rat:
(Raw unless otherwise specified.)
(Organic produce is best, if affordable. Always clean, washed (very well if not organic!), and fresh – never old or funky food!)* 1 serve per day: a floret or two of broccoli, a leaf or two of kale, or a leaf or two bok choy (vary it from day to day)
* Each week: heaping teaspoon of: cooked beans
Note: beans preferably include: soybeans, chickpeas, navy beans (canned or cooked) – these beans are highest in copper and other good things for rats* 3 serves per week: 1 heaping teaspoon of cooked sweet potato, or a third to half a carrot.
Note: sweet potato MUST be cooked. Raw sweet potato can be toxic. Cooked sweet potato is preferred of the two.* 2 serves per day (vary it from day to day):
BEST FOODS:
+ berries, 1-3
+ sprouts, tablespoon
+ banana, chunk/cube
+ tomato, wedge
+ grapes or raisins (purple are better), 2-3
+ parsley, 1-2 sprigs
+ melon, 1-2 cubes
+ pineapple, 1-2 cubes
+ plum, half
+ yellow squash, half
+ green peas, tablespoon
+ apple, quarter or wedge
+ carrot, cube-ish chunksOTHER OK FOODS
in case you are out of the best ones:
+ corn, quarter of a cob
+ celery
+ garlic
+ eggplant
+ onion
+ mustard
+ dates
+ prunes
+ ginger
+ cabbage
+ spinachCereal & Grain Mix
1-2 tablespoons of mix per day.Mix Recipe – mix together (SEE UPDATE AT BOTTOM OF POST):
* 1 box of parrot/large bird/wild bird seed, that does not contain shell grit. (Shell grit can damage rat digestive tracts! Say no to shell grit!). Typically these contain a good mix of sunflower seeds, wheat, barley, other grains/seeds/etc. (Note that “rodent” or rat/mouse mixes usually contain a bunch of stuff that rats won’t even eat, like grass pellets and lucerne.)
* 1 tablespoon of flax seeds or flax meal or walnuts
* 3 tablespoon oats
* 3 tablespoon puffed millet
* 6 tablespoon puffed brown rice
* 1 tablespoon pumpkin seeds/pepitas
* 1 tablespoon sunflower seeds
* 1 tablespoon sesame seeds
* 1 tablespoon cashews
* 2 tablespoons of Lotus nutritional yeast flakes
* 2 slices crumbled several-grain whole-wheat (or gluten-free-wholegrain) bread (the bread I make is ideal!)Important! Note: Don’t add the bread to the grain mix – it will go mouldy. Add a few little bread pieces when you’re serving the grains each day. Or keep bread bits broken up and in the freezer, and add those to the bowl each day – if you don’t eat bread crusts/the end bits of the loaf, use them!
Note: Everything on this list can be found in the supermarket, except for nutritional yeast flakes, which are found in health shops. Lotus is the best brand. (Keep in mind nutritional yeast is NOT THE SAME as brewers yeast or other yeasts.) Nutritional yeast contains essential B vitamins.
Note: the seeds – pumpkin seeds/pepitas, cashews, and sesame – are essential for zinc and copper and whatnot… Yes, cashews are seeds! Also, flax and walnuts are excellent sources of omega oils.
Treats! Very Important!
Share your food with your rats! If you share your food with your rats, you can meet many of the veg/fruit requirements above pretty easily. But note that raw food contains more vitamins and antioxidants – raw is much better for rats!Ideal foods for sharing include:
* Scrambled tofu
* Baked beans
* Lentil & vegetable stews or soups
* Soy milk shakes
* Soy fruity yogurt
* Breakfast porridge or cereal with soymilk
* Whatever fruit you’re eatingFoods rats should NEVER eat
* Dairy – besides NOT VEGAN! and it not being good for humans for many of the same reasons… Rats are lactose intolerant. The saturated animal fats & proteins are not good and contribute to disease and obesity. It leeches calcium from bones. Cow growth hormones are not good for rats. Dairy requires 4 stomachs to digest properly – cows have 4 stomachs, rats don’t. Casein protein increases the incidence of tumours… Shall I go on?
* Raw sweet potato – moulds that grow in sweet potato skins are toxic to rats.
* Orange peel and orange juice – particularly for males, the orange oils cause kidney problems.
* Carbonated beverages – rats can’t burp!
* Raw dry beans, raw peanuts, green bananas, green potato skin – for the same reason you shouldn’t! Moulds, indigestability and toxicity.
* Any highly processed foods or fried foods – junk food is junk. Throw it out now!
Note that you should adjust the quantity of food according to the size and age of your rat, and according to how much they eat. eg. A small rat would need less food overall, and a young growing rat may require up to 3 tablespoons of grain a day. If you have a rat that needs to lose weight, less grain and more fresh produce is the answer! An ill rat or a rat with tumours should get more kale – kale is a super food! Berries and broccoli are also very good for improving health. Never leave uneaten fresh food sitting in the cage for more than 24 hours.
As for cat food and dog food? Try Veganpet! My two cats love it. It’s human-grade food as well, which is more important than many people realise – if it’s not safe for you to eat, then don’t feed it to your family members, be they human or otherwise!
UPDATE! Oct 29, 2008:
Having adopted a mostly-raw diet, so have my rats and mice. Their grain mix now contains oat groats instead of rolled oats and puffed grains – and in a far smaller quantity. It also now contains a large amount of buckwheat groats (soaked and dehydrated), a greater variety of raw chopped mixed nuts and seeds, and smaller amounts of chopped dried figs and goji berries. Ever since we introduced this food, their coats have improved out of sight! They were already quite good, but now they look younger and shinier!
Our mix definitely DOESN’T CONTAIN ANY PREMIX “PETFOOD” from the supermarket – if you want a grain mix, choose a muesli mix with a lot of variety of grains in it. “Petfood grade” rat and mouse food is often treated with pesticides to kill small insects and moths that hatch out of the grains. This is not in the best interests of your rats and/or mice!
We have also increased the amount of greens in their diet – greens are a high nutrient, high protein, high-in-everything-good food. They LOVE kale! Broccoli, broccolini, spinach, and various collard greens are quite popular, too. They seem to prefer these to fruit. They also quite like avocado… as per usual… and as do I! They also usually get leftovers (or a bit put aside) of my dinner… and usually a bit of breakfast, too.




Oooh, very interesting. I don’t have rats at the moment, but I’d love to get some rescues some day and it’s always good to be informed.
hey i currently have 4 lovely boys and i’ve been trying to figure out the best food for them i adopted them from a friend because one of them well hes a father times a bunch now and they couldnt keep them all but to tuimeltje if you still don’t have some rats and live or around toronto they are waving their adoption fees
Great blog! Our company was the first to produce certified organic whole food treats (all human grade) for rats and other ‘pocket pets’.
We dehydrate to keep nutrients alive nad add zero chemicals or GMOs (unlike competitos).
Best, Heidi
[...] good references. Quite a funny presentation in places (and even includes information on improving rat diets & health, [...]
Hey friend, someone sent me your blog and I am refreshing myself on rat nutrition for my two new babies =)
I noticed that you encourage greens, aren’t a lot of greens going to upset their tummy?
Can I ask you some questions? Do rats have any nutritional need for cholesteral, I can’t imgaine that they do…but does any animal? Do you believe rats to be naturally grainvores? What do I tell the people whose rats constantly die of cancer, are obese, riddled with tumors, who disregard a vegan diet because a “rat nutritionist” says they need meat?
I’m so excited, there are farmers markets opening up near me, now I can get locally grown, in season, produce for a good price, and I don’t even need to refrigerate them (I hate the idea of doing so) as I can walk there every week =3
Oh! Oh! some recomended reading to learn about rat diets and basic physiology?
A lot of greens will upset their tummy. I don’t feed my rats “a lot” so it’s not a problem.
Rats don’t need cholesterol. Carnivores and necrovores can digest/process it, but I’m not sure if there’s a need for it actually… but then I don’t look into the diets of wild animals…
Rats are not strictly granivores, no. They are primarily scavengers, and can eat just about anything and survive for a period of time. However if you want the best for your rat, long life and no disease, it’s handy to give them better than rubbish!
Watching rats die of cancer, obesity, tumours, heart disease, etc is like watching what happens to humans eating a SAD (Standard American/Australian/etc Diet), but in fast-forward. You see the damage so much faster. Rats are quite similar to us in so many ways – we are both destructive animals who rearrange the natural environment when it suits us, and we can both live off garbage… for a while before it catches up with us, anyway. My rat Alice was starved as a baby, yet now is 2.5 years old and has never had a thing wrong with her. She’s not neutered, either. Most female rats would be riddled with tumours by now, yet she looks like she’s not over 1 year old. My last male rat lived until 4, no health problems until the last few weeks… THAT is what a good, plant-based diet brings: good health. The evidence is in the… evidence. The China Study by T Colin Campbell, for example. It even mentions rat diet studies in parts.
There’s not much around about rat diets insofar as a good plant-based diet is concerned. As for physiology, The Rat Health Care Guide by Debbie Ducommun is good in that aspect. There is also a nutrient guide in there, but unfortunately it’s overly heavy on protein and animal products, like most bog standard, old-fashioned, medical-mumbo-jumbo type stuff!
We just recently bought our first set of rats, hairless. The one rat is wonderfully healthy while his brother is ill. The brother seems to have had a stroke pryor to us buying him but the worst is the really bulky foul smelling stools. I fear he either has an infection but most likely a result of the antibiotics the pet store gave him thinking he was sick when actually he may have had a stroke. I was wondering if you had any advice to making him feel better, food wise. I was also wondering if you have ever heard of rats having celiac disease?
Hairless rats are usually in-bred & develop health problems pretty early on in life. Just try feeding him more fresh food & see if he improves a bit. Vitamins help! If not, take him to the vet. He might need different antibiotics or something else entirely. If it’s a stroke, a vet would probably just give him a booster like steroids to strengthen him. Rats with weakened hearts don’t usually fair too well long-term. 600bpm resting heartrate needs some power, after all. I’ve not heard of rats being diagnosed with coeliac disease specifically, but I’ve heard of rats with wheat allergies.
Hi, great blog, I also have rats and feed them a raw food diet. They’re very healthy and as I’m also raw it’s easy to feed them as they get what I’m making in the day. Thank you for sharing this info. I’m too saddened by rats that get disease and suffering that seems totally unnecessary.
My unneutered female rat had a rough, malnourished start to life, &now she’s over 2yo &looks not a day over 1! My last boy rattie lived until 4yo with no health problems along the way. Amazing how easily the tumour problem &other health problems can be overcome with a good mostly-raw vegan diet… Same goes for humans!
Hi Renee, I was wondering what your thoughts are on B12 needs of rats? Do you think they should eat raw meat as they would in the wild?
Rats are scavengers in the wild, they don’t eat “raw meat” – they eat rotting matter, some of which may include animal remains. When a rat attacks & kills another animal, it’s over territory, not for food. While that is what meat-eating humans eat as well, since it’s not freshly killed (as Sea Shepherd Captain Paul Watson says equates humans to “necrovores” rather than omnivores – carrion feeders, such as crows). B12 comes from all rotting matter, whether soil, vegetable, fruit, or whatnot. In a sterile environment, humans don’t get B12 without supplementation. Statistics show B12 deficiency is more common in necrovore/omnivores these days than it is in vegetarians and vegans. As for rodents, no matter how many times a week or day you clean their cage, they do not live in a sterile environment. B12 from their gut ends up recycling in their environment. They don’t need supplementation at all. If rodents require B12, they consume their excrement, as is more common in rabbits. Rats, however, generally manage to avoid this, as their gut flora produces plentiful B12. It’s more common for mice to do this. So, to cut a long story short, rats do not need rotten meat any more than humans do. There’s no fresh/raw meat available in shops. Once blood stops pulsing through flesh, it’s not raw & it’s well on it’s way to becoming carrion. Rats don’t need it, & domestic cats shouldn’t eat non-fresh rotten meat, either. Mine don’t. There are better, less violent, less destructive, healthier options. Rats require higher protein than humans, but there is little else they need in addition. Most humans eat too much protein, so usually there’s no need to compensate anyway! There’s plenty of protein to be found in the extra grains most folks feed to rodents.
Please refer to my FAQ for B12 discussion as well as further pet/companion animal diet information.
Hi Renee, just wanted to say thank you for putting so much info on your site to do with raw diet and veganism. Also, the article on feeding your rats has been most helpful too. Thank you!
Renee,
I know you changed the grain mix around–can you tell me exactly what you put in now and the amounts–esp the seeds/nuts. Since you do mostly raw now do they get the sweet potato still?
I have mostly fed this way as I thought the suebees mix was too high in salt/sugar and the HT blocks had terrible ingredients. My boys get a different grain mix every day–one day rolled oats, oat groats, rolled barley –the next rolled wheat, rolled spelt and toasted buckwheat groats. Plus they get fresh fruits and veggies everynight and a nut 2x per week.
I am going to start sprouting grains and beans for them as well once my stuff gets here. I also feed Petguards organic vegetarian dog food but eventually I would like to just give all unprocessed food as much as possible. They also get a type of green mush every other night with flaxseed oil. My boys are now over 2. Some are overweight though. Would love to talk privately about this as I am a nutritionist and researching and learning this stuff is my passion. I used to be a raw foodist but TMJ put that to a hault seeing as I cant chew now with out every muscle in my neck tightening.
Ruth
Hi Renee, my rats really love their fresh foods and smoothies. It’s hard to get them to eat their grain mix. Other rat owners recommend up to 80% dry mix food which I feel should be the other way round. What do you think?
I agree, Bree! Grain mix is good for a little extra protein hit that rodents need, but more fresh food is definitely better. Certainly improves their health & lifespan enormously in my experience.
Hi Ruth,
I’ll do another new post soon about what I put in the rat food mix now, since there seems to be some demand for an update!
To reduce weight issues, I’d reduce the veg dogfood/grain mix overall & increase fresh fruit & veg.
This has been so helpful. I was not able to find anyone, even “vegan” rat owners, that could tell me anything about a healthy alternative diet for rats. I really don’t want to have to buy from Harlan Teklad.
I do have a question, though. What do you use for bedding and litter? I’m told fleece is best for bedding (but it’s not vegan… even though it’s very sanitary and easy to clean) and I don’t see any options for their litter box that aren’t made by companies that are tied in some way to animal cruelty. Help!
Hi Renee, what are your thoughts on ’selective feeding’ regarding rats?
Polar fleece is synthetic & vegan. I’ve seen many people use this as bedding successfully.
I use primarily recycled newspaper pellets (with an awful name “Breeder’s Choice” – from Australian company Fibrecycle) for rats & usually recycled paper towels as bedding for mice.
On “selective feeding” – I think there is such a thing as fussing too much! Plenty of fussing is more than enough for me…
I just had a question about your measurements. Are they per rat? I have 14 so I’m just curious, hahaha.
I’m sorry, I just reread that and I found the information I was looking for. You can ignore my last comment, haha.
Your blog is amazing Renee!
I’ve been a vegan for a long time now, and was so happy to find an “easy” way to make a nutritious diet for rats without crossing any moral lines.
I’m also very interested to see an update with more specific measurements of your new diet. On top of that, how did you evolve the new diet from the original? Did you notice certain symptoms that they were getting too many oats for example? Are there things that we should look for that could indicate how to adjust the diet more specifically?
I’m planning to adopt some rats from the OSPCA, and so I assume they’ve been on a more processed diet. Should I wean them onto the new diet (like with dogs)?
Thank you, keep up your amazing work!
Wow, thanks so much for posting this! I’ve been vegan for a long time, and am a seasonal raw foodist
I had rats in the past, when I wasn’t vegan, and fed them normal pet shop rat food, and one of the girls went blind and developed something with her back feet that she couldn’t walk on, and the rest seemed to die relatively unhealthily
I’ve been looking for vegan rat food recipes, and this is really great. It’s great to hear your rats do so well on it. I can’t wait to get a few rats and treat them so well
Thanks again.
Yay! After months of preparation, I have just adopted my first trio of mature boy rats, and I picked up every ingredient this afternoon and mixed it all in a big container. (^_^)
The boys also got their pick from a vegetable plate – organic kale, purple grapes, and carrot. And everyone had some sprouted grain bread pieces (their favorite munchie so far).
Believe it or not, the only thing I DID have trouble finding for the recipe was an appropriate bird mix – everything I saw had either shell grit, soy meal pellets, or basically the same mix of seeds already in your recipe. I found one that contained *some* original items, but it also included unshelled peanuts and dried HOT peppers! I tasted the peanut shells and peppers and they were SPIII-CY! I removed the peanuts and peppers and the rats still seem a little wary of the mix, although they’ve only been picking at it for a few hours now. If they reject it, I’ll make a new mix without the bird food.
I’d like to ask you – if I could eliminate one thing from the recipe, it would be the bird mix – I’d rather hear what sorts of things are in the bird mix that you like, and I can just buy those ingredients separately.
Thanks for a wonderful rat diet that follows my own heart and keeps them super-healthy!
~Meech
I have eliminated the bird seed mix! I need to update my rat food recipe… been a bit busy of late…
Ooh, I can’t wait… update update! *cheerleader* Take your time and THANK you!
Yeah, I can’t wait for an update ^.^
I’ve finally adopted my two male rats, who are about a year old. They enjoy a lot of their new diet, but so far they won’t touch the kale and they’ll only eat the broccoli if it’s been cooked a little. I even tried flavouring the kale (I tried some soya sauce and after tried some maple syrup). Do you have any suggestions for getting the rats to eat their greens, or for good substitutes for the kale?
Thanks again, so much for this posting Renee. It’s amazingly helpful!
A colesaw-ish mix of parsley & cabbage perhaps? (no dressing!)
Try this Sammy: boil a pot of water with a tiny bit of salt, and dip the kale leaf in for 5 seconds or so. This might make it more palatable to them? Mine love their kale, I swear it’s the favorite part of their “rat salad”.