Do Rats Eat Roaches & Cockroaches

Rodents like mice and rats have a wide variety of delicacies together with roaches and cockroaches. As rats are good at hunting, they won’t hesitate to hunt roaches around your house to eat them up. Nevertheless, this will only take place the minute they are starving but they do not have any other food options available to them.

Hence we are bound to ask the question Do rats eat roaches and cockroaches? The answer is rats and mice eat cockroaches as a substitute only. Dead cockroaches have similarly been detected to produce a rotting protein odor that fascinates rodents like mice and rats. Rats’ favorite cockroaches are the feminine ones that have delicious milk in their stomach.

do rats eat roaches

Obviously, rats are pretty smart, and thus they always try to go for the easiest meals. They can’t go without eating for a week, and therefore they will consume nearly everything the minute they are hungry. Just to survive, they’ll eat both live as well as dead roaches. So, let’s now know in detail what rats eat normally.

What Does Rats & Mice Eat?

Many individuals who have spotted a rat in their garage or house wonder, “What do rats eat?” Anybody who has ever had a rat problem knows that the question should be, “What do rats not eat?” since there are not many things that these omnivorous creatures will not chew their way over.

Rats have to eat often, repeatedly 15 to 20 times per day, as well as their usual diet includes seeds, fruits, insects, and grains. These rodents have improved quite well to live strictly with people, in huge part since humans offer them stable access to numerous nutritious nourishment sources and shelter and water.

Rats are truly so well improved to living with people that they’ll eat many things that are not in their normal diet—even foods that are not mainly nutritious, like clothing, cardboard, furniture, bedding, and other non-food substances.

Obviously, several of these “eating” isn’t eating but rather a natural chewing behavior. Rats chew for a range of details, including admission actual food, gathering resources to evoke to their shells, or retaining their long, shrill front teeth filed down.

trap brown rats with glue

Like mice and numerous other rodent species, rats have front teeth that grow uninterruptedly throughout their lives; this means they must frequently concern to keep their teeth from growing too sharp and long.

Thus, rats living in individual garages or homes might chew wood, drywall, concrete, plastic pipes, or even electric wiring. Even though they may not strictly be eating these substances, it frequently appears to landowners as if rats have been consuming away at their houses—as well as either way; the mutilation can be widespread.

Cockroaches, unquestionably, are within a rat’s regular diet. Rats eat several types of creatures, and while roaches can be tough for a rat to catch as they move so speedily, they’re worth the rat’s determination to catch since they are an outstanding source of fat and protein macronutrients that rats need to live. Cockroaches also comprise minerals vital for a rat’s diet; even the wings of cockroaches and other parts of the exoskeleton can support the rat’s digestion system.

Do Rats Eat Roaches?

Rats are one of the most common species globally, and they are frequently found invading houses. You might be wondering whether they can help you control your home’s cockroach population by eating them. But the question is, do rats eat roaches? Although both rats and mice eat roaches, it isn’t enough to get rid of the pests from your house.

Cockroaches are flying and fast-moving pests and are hard for rats to catch; most of the time, they are entirely failed in their labors. Even if they catch and kill a roach to eat them, there are perhaps too many cockroaches for a few rats to make much of a variance. What is more, rats and roaches flourish in one another’s concern?

Should I Have Rats In My House?

pets animals creatures at home

For landowners with surprising mouse complications in their houses, it is customary to wonder, “Why do I have rats in my house? Or is it okay to have mice in my home?” just like several unwelcome critters, rats are freebooters. They hunt for easy access to shelter, food, and water, which are their three maximum basic requirements for survival.

If you have some holes in your baseboards or gaps in the plumbing, you could be providing mice easy entree to your house. Despite everything, these tiny creatures can fit through the smallest gaps that are the dimensions of a dime only.

In case rats are in progress in nesting at your house, it means that they have discovered a consistent source of water or food, most importantly. Thus, if you wish to make your house less tempting to rats and other types of rodents (not to remark cockroaches), it is significant to keep the stovetop and your home’s counters clean.

Keep foods in tightly closed containers, together with pet nourishments, and ensure you do not have leaky nozzles or other foundations of freshwater that pests such as rats, mice, and roaches can effortlessly access.

What Can Rats Eat Instead If You Have Pet Rats? 

presence of mice and rats

Rats need specific elements in order to stay healthy. Their food habit is simple, but giving them the incorrect thing could damage them. This’s what you can offer to your pet rat so that your pet can stay healthy and strong:

  • Carbohydrates, particularly whole wheat as well as entire grains foods
  • Fruits and vegetables are essential sources of minerals and vitamins for rats
  • Meat and lean protein without bad fats as they gain weight speedily

Additionally, you can offer them occasional human food or snack. However, ensure that you do not give them any food that is too salty or spicy. Carbonated drinks and sweets are similarly not a better option for mice.

To keep them strong and healthy, you must feed them appropriately in apt amounts for their age and sex. Rats tend to get fat pretty speedily, so ensure that they eat correctly but do not overeat food.

In order to check rat’s weight is in balance or not, you must check if you can feel the bones on the spine and their hips. However, there should not be too many wobbly parts too. They look cute as soon as they get chubby, but it can affect their health poorly.

The best diet for your domestic pet rats is typically a dry mix that you can quickly get from a pet store, explicitly assorted for mice and snacks that comprise fresh occasional fruit and vegetables.

A dry mixture is the base nutrition of any pet rat. You can also make your mixture or purchase one from the pet’s store. Anyone will work, particularly in case you pick the accurate ingredients for this. A mixture should have:

  • Lean meats filled with soy elements or protein
  • Whole wheat grains
  • Minerals and vitamins

You can likewise get this nutrition in blocks or pellets. The dry elements from the mixture above are just hard-pressed in pellets. Most owners prefer pellets since, that way, mice can’t be selective and consume only some parts. Every pellet tastes and looks the same, as well as they will have sufficient of all nutrients.

A few rats owners state against pellets because they disagree with the usual way mice eat. They rather love to let the rats rummage around, steal food, dig for the material they like, and also play with it. Actually, pellets do exclude the fun part of rats’ eating. In the end, it is your choice, which one you prefer for your rats.

Either way, the nutrition you pick needs to have dissimilar types of protein, grains, no sugar, and a few good fats.

Along with the dry mixture, you must also feed your mice many fresh food and water. The amount you offer will depend on your likings and what you believe is the best for your pet. Some experts commend that you must give the food every day, on the other hand, some suggest providing it only two times a week.

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As mice are omnivores, they can consume plenty of fresh foods. Vegetables and fruit — mainly veggies — are suitable for rats. In case something is poisonous for humans, do not feed your rats that either. Do not give sticky food such as peanut butter since they could choke if they have them.

You should give them colorful vegetables and fruits that have low or no sugar. Avoid giving them citrus fruits or mango since those are not good for them, particularly male rats. For protein, you can provide them with some poultry, eggs, or even sometimes fish, but give it only in small quantities.

You can similarly give them enhancements such as minerals and vitamins. This isn’t essential, but you can if you think it is necessary for your pet. However, it is recommended to consult someone beforehand you do so.

Ensure that you’re giving your pet rat enough calcium through their daily diet. You can also get edible supplements, and there are plenty of choices for your pet rat. They will certainly be happy and healthy, given a sufficient amount of vitamins and minerals, as well as other needed nutrients.

Foods You Can Give To Your Pet Rats:

  • Tomatoes
  • Carrot
  • Broccoli
  • Bell Peppers (in slight amounts)
  • Red Pepper
  • Sprouts
  • Sweetcorn
  • Peas
  • Kale
  • Lettuce
  • Apple
  • Bananas
  • Blueberries
  • Melons
  • Plums
  • Cherries
  • Strawberries
  • Grapes
  • Chicken Or Chicken Bones
  • Cooked Liver
  • Yogurt

Foods That You Shouldn’t Give To Your Pet Rats:

  • Sticky food such as mashed potatoes or peanut butter (even though fresh or cooked potatoes are good for them)
  • Raw beans
  • Carbonated drinks as well as sugary treats
  • Green bananas
  • Citrus fruits (particularly to males)


On the whole, strive to offer enough nourishments to your pet rat, but avoid offering them any food that can be unsafe to them. Mix food appropriately and do not give them too many fatty foods or sugary foods.

Remember that rats gain weight speedily, and they can eat more than they need to. Thus, give them measured meals based on their health and age. Insects should not be a portion of their nourishment. However, do not worry if they catch and kill insects to eat them because they are used to eating insects like cockroaches.

So, in case your pet rat eats any insect or a roach, that is okay, but in case you feed them sufficiently, they will barely bother to hunt any other food on their own.


Which is worse, rats or roaches?

It is not easy to say if cockroaches or rats are more hazardous household pests. Although the diseases that rats transmit can be fatal, only a few rodents are affected by those pathogens. On the other hand, cockroaches quickly pollute your home. So, both are dangerous for our home.

Can rats kill roaches?

Rats happily dine on numerous species of roaches, both small and large. Even though rats will eat roaches, but these rodents shouldn’t be relied on for your garage, yard, or home’s pest control service.

Do mice eat cockroaches?

Yes, mice hunt and kill cockroaches to eat them if you have no other food to eat. Rats will similarly eat crickets, as well as centipedes and also other insects.

Do mice and roaches coexist?

Cockroaches can feed upon rats’ droppings, which means that cockroaches will flourish in your house even in case no other food sources exist for them. Not to be exceeded, rats also feed on roaches. A spiteful cycle of rats and cockroach plague results as soon as these two pests are in your house.

Can I Get Rid of Cockroaches With Pest Control?

Cockroach plague becomes suffering particularly because they’re challenging to kill. Roaches can just be removed in case you know the accurate techniques. However, the most straightforward way to get rid of pests is to keep cleanliness. Approaches to pest control differ. So, you can hire professional pest control services to get rid of cockroaches from your house.

About the author

I'm Gulshan, a passionate pet enthusiast. Dive into my world where I share tips, stories, and snapshots of my animal adventures. Here, pets are more than just animals; they're heartbeats that enrich our lives. Join our journey!thing.