Can Mice Eat Chocolate? {Best Vs. Worst Foods For Mice}

I can’t blame a mouse for loving chocolate as much as I do. I know that when I eat too much chocolate, I feel uncomfortable. Can mice eat chocolate? What will happen?

What is theobromine? How does that chemical link to chocolate consumption in mice?

In this article, we will find out which types of food that mice love to eat and find out for certain, “Can mice eat chocolate?”

Can Mice Eat Chocolate?

Yes. Chocolate attracts mice like no other food source. In many studies, chocolate has become the number one go-to food item that mice are drawn to.

Mixing chocolate with bait traps that include baking soda, borax acid or diatomaceous earth will certainly kill a mouse.

The liver of a mouse is fairly strong and capable of eating some chocolate. Overconsumption can lead to a theobromine overdose. Too much theobromine will prove to be fatal for a mouse.

Do Mice Like to Eat Chocolate?

Mice love chocolate more than peanut butter or cheese and also preferred over vanilla. One of the top food sources that rodent control experts use is chocolate. They mix it with mouse or rat poison and leave it on a paper plate.

It is the easiest way to draw in a mouse and kill it. A mouse is usually able to control its appetite. The sugar, fat and cacao beans of chocolate products are too delicious and attractive for a mouse to control itself.

If a mouse eats too much chocolate alone, the theobromine contained within it is enough to seriously sicken, weaken or kill a mouse.

Is Chocolate Toxic to Mice?

The problem lies when mice are unable to digest an overdose of the chemical theobromine in their livers.

Chocolate contains this chemical and if people are not giving chocolate sparingly as a an occasional treat, the weight gain, diabetes liver malfunction or this theobromine overdose could lead to a fatal result.

If you are looking to control a mouse infestation in your home, you can draw in a mouse with chocolate, but you should mix it to create a toxic compound that will kill a mouse with in a day or two.

You can mix chocolate with:

  • baking soda
  • borax (boric acid)
  • diatomaceous earth

Can Rodents Eat Chocolate?

Rats or mice can be fed chocolate as a treat once or twice a week. Too much chocolate will result in an overdose of the chemical contained in chocolate known as theobromine.

Most chocolate products are also very sugary. Your pet mouse or rat will end up with:

  • obesity
  • tooth decay
  • upset stomach
  • liver failure
  • overdose of theobromine
  • potential death

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Do Mice Like Nutella?

Nutella has been tested on mice and it has passed with flying colors. The reason being is that there are nuts that also attract mice and the high fat content as well.

People think that peanut butter works better than chocolate spread, but they are sadly mistaken. Nutella with its chocolate, fatty oils and hazelnuts are too attractive for a mouse to choose any other type of food source.

This is why people really easy to create bait traps mixing Nutella with poisonous powders like boric acid or diatomaceous earth.

Do Mice Hate Chocolate?

No. Quite the contrary. Mice love chocolate. You should consider using chocolate on bait traps instead of cheese or peanut butter. You can also mix peanut butter and chocolate together.

Some people use artificial sweeteners or sugar to attract mice. The sugar content inside a package of milk chocolate is enough to drive a mouse crazy. The chemical theobromine inside chocolate can damage the liver of a mouse if it overconsumes it.

However, if you want to get rid of mice, you should mix in poisonous powders such as boric acid or diatomaceous earth with the chocolate. Your mouse infestation will be no more.

What Is a Mouse’s Favorite Food?

In our opinion, the hands-down favorite of all foods that might love to eat is chocolate. Their next favorite is probably peanut butter.

We have a misconception that mice love cheese more than anything else from the cartoons that we grew up watching when we were kids. The fact is the sugar content and fat in chocolate is enough to draw in a mouse over cheese.

The taste of chocolate is also irresistible, but it contains high amounts of theobromine which can hurt the digestive system of a mouse if they overconsume it.

If you have a pet mouse and you would like to treat it with chocolate, do so only once or twice a week with about half a chocolate chip at a time. If you would like to eliminate your mouse problem, you can draw in the rodent with chocolate mixed with a type of rodenticide.

Do Mice Eat Candy?

Sure! Mice love sugar. Any type of candies or chocolates will be a favorite for mice. This is why many pest control experts recommend that we drop a package of artificial sweeteners, sugars, chocolate or peanut butter to draw in mice when we mixing to bait traps that contain poisons.

If you do not want your favorite snacks to be infested or contaminated, you must seal them carefully. I tend to spray the exterior of my favorite snack packages and containers with a vinegar and water solution.

Two sprays all over the container will be enough to deter any unwanted critter or rodent from ever appearing and attempting to reach my favorite snacks. At the same time, I can leave a portion of chocolate out for rodents,  but mix it with a rodenticide to make sure that they never come back.

Is Chocolate Good for Mouse Traps?

Even though a mouse loves to eat nuts and seeds, you would want to place chocolate  on a bait trap that would entice it with an irresistible attraction an inability to refuse.

The hands-down favorite would be chocolate. Peanut butter or hazelnut spread would be the next best food options. They are high in calories, fat and sugar. Chocolate would be the easiest way to entice a mouse over to your bait trap.

How Much Chocolate Can a Mouse Eat?

A mouse should not eat more than a quarter teaspoon or half of a chocolate chip. A few shavings of a chocolate bar is not enough to hurt your pet mouse.

If you would like a mouse to over-consume the chocolate, leave as much out as you want. If you are reading about how much chocolate to give your pet mouse, do not exceed this treat more than two to three times a month.

The fact is, the chemical in chocolate known as theobromine is hard for mice to digest in large quantities.

Do Mice Like Milk Chocolate?

Milk chocolate tends to contain more sugar than dark chocolate. The more sugar involved, the more attractive it is for a mouse. A mouse is looking for a high calories, high fat and highly sweet treats.

They are attracted to the aroma of sugar and chocolate. Mice eat more milk chocolate than white chocolate at a ratio of 3 to 1 when this was recently studied.

Can Mice Have Sugar?

Pet mice have a common issue with obesity:

  • If you wish to feed a mouse chocolate or sugar, you will have to do it in very small amounts.
  • Anything that’s high in fat or sugar should be avoided as a weekly treat. You should save it for once or twice a month at most.
  • A stomach of a mouse can experience gastrointestinal upset.
  • Their livers will also have a hard time processing sweet treats that involve too much sugar.
  • Sugar is a very attractive substance to use as mouse bait.
  • You can humanely trap a mouse with sugar alone or mixed with chocolate or peanut butter.

How Fast Does Chocolate Kill Mice?

Chocolate is not considered toxic enough to kill a mouse that fast. Smaller amounts of chocolate over time will harm a digestive system of a single mouse. This is because there is a chemical known as theobromine in chocolate.

Too much sugar will also create problems with diabetes or obesity. If you want chocolate to kill a mouse quickly, you will need to add poisonous substances such as:

  • boric acid
  • baking soda
  • diatomaceous earth

Which Foods Are Unhealthy for Mice?

Some of the foods below can be considered unhealthy in the smallest amounts While others should be given at very low doses.

  • Oranges
  • Lemons
  • Grapefruit
  • Limes
  • Garlic
  • Onions
  • Candies
  • Dairy Products
  • Peanuts
  • Fast Food
  • Raw Meat
  • Carbonated Beverages
  • Alcohol

What Is the Best Diet For a Mouse?

The best diet for a mouse would be considered a healthy balance of fruits vegetables grains and meats. The following list Involves many vegetables and fruits that a mouse would enjoy alongside meats and grains:

  • Carrots
  • Broccoli
  • Cabbage
  • Cauliflower
  • Chicory
  • Sweet peppers
  • Cucumber
  • Watercress
  • Peas
  • Apples 
  • Pears
  • Peaches
  • Melons
  • Dried bananas
  • Grapes


Thanks for visiting for the best information to help you to make the pest control process easy, safe & affordable.

Jason Barrett

Hello, I'm Jason. I have 11 years of experience in dealing with pests. I try to provide you the best information that'll help you to make the pest control process easy & affordable