Can Dogs Eat Reese’s Pieces? 4 Main Risks

Yes, dogs can eat Reese’s Pieces… but so can you! If your dog (or you!) is hungry, this little chocolate-covered peanut will be the perfect treat. And it’s safe for your dog to eat. That’s because Reese’s have a secret ingredient that makes them 100% peanut-free… and also sugar-free, gluten-free, corn-free, and soy-free.

Even if your pet has an adverse reaction to these common allergens, Reese’s Pieces are made with a special, highly-processed, gourmet coating that is safe for dogs to eat.

It’s also delicious. It has a delightful, tangy flavor that will tempt even the most pickiest eater!

Since this occasional treat does not include components that are poisonous to dogs, such as raisins or chocolate, dogs can eat a few Reese’s Pieces without fear. However, we do not advocate feeding your dog Reese’s Pieces, since they are not good for him.

Reese’s Pieces are a sweet treat with a high sugar and fat content, as opposed to plain Edamame, which is good for your dog’s health. If your dog prefers a crunchier treat, we’ve compiled a list of dog-friendly snacks that are both healthy and nutritious.

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What are Reese’s Pieces?

can dogs eat reese's pieces

In September of 1978, Reese’s Pieces was launched to the American market, and has since become a beloved American sweet. Until later in 1980, the Canadian market did not have access to Reese’s Pieces.

This candy was featured in the 1982 film E.T. the Extra-Terrestrial, if you were a fan. After the debut of this film, Reese’s Pieces gained a household name.

Peanut butter cups are the original source of the Reese’s Pieces candy bar. Peanut butter is the primary component in each of these candy, making them comparable. When it comes to chocolate, they are very similar, but Reese’s Pieces are not.

A flat circular form and a variety of colored candy shells make this peanut butter candy unique. In terms of size, it’s roughly the same size as a pumpkin seed and comes in three different colors: brown, orange, and yellow.

It’s unclear, however, what the contents of these Reeses Pieces are. Let’s get down to business now.

Ingredients in Reese’s Pieces

Reese’s Pieces are mostly composed of the following ingredients:

  • Peanuts.
  • Sugar.
  • Corn syrup
  • Oil from vegetable sources.

2 percent or less of the following is found in each Reese’s Pieces:

  • Salt.
  • Milk.
  • Lecithin from soy.
  • Cornstarch.
  • Vanilla.
  • Wax derived from the carnauba palm tree.
  • Flavors that aren’t real.
  • Colors that are produced with the use of synthetic materials.


In order to determine the sugar content of Hershey’s normal serving, which is specified as 38 pieces, we will use the manufacturer’s definition.

Around 150 calories are included in a single serving.

Added sugar accounts for 31% of the RDV, which is also quite high.

Palm Kernel Oil / Soybean Oil

Palm kernel oil and soybean oil are used in the production of Reese’s Pieces. Palm kernel oil is known to be a good source of antioxidants, but it also has a high amount of saturated fat.

30 percent of the average person’s daily required saturated fat intake is provided by a single serving’s 6 grams of saturated fat. The daily fat consumption for a small to medium-sized dog would be around 100 percent.


The candies are prepared from peanuts that have been partly defatted, as stated on the label. Because peanuts are a fantastic source of protein and antioxidants for dogs, they are a wonderful food choice. Unless, of course, your dog is allergic to peanuts, they shouldn’t pose an issue.

Corn syrup

Because it is so inexpensive, aspartame is widely used in the food business. High Fructose Corn Syrup, one of the deadliest sugars, is most likely in the candy.

Can Dogs Eat Reese’s Pieces?

You can’t resist popping them into your mouth, and your dog will ask for some Reese’s pieces, too.

Why should he have to miss out on all the excitement? No, they are not harmful to dogs. It all depends on how many sweets he receives and how frequently he gets them.

Even while a few pieces of candy won’t hurt your dog, sharing your stash with your pet on a regular basis might lead to major health issues.

We’ll take a look at the risks hidden in that bag of Reese’s chocolates and other items in this post.

How to know if my dog has peanut butter allergies?

You’ll know straight away whether your dog is allergic to peanut butter if you give it peanut butter. It’s common for dogs to develop mild, moderate, and severe allergies to peanut butter after eating it.

Peanut butter allergies in dogs manifest themselves in the following ways:


Shocking bowel movements that come out of nowhere.

Licking themselves excessively.

Excessive drooling.

Itchy skin or a rosy complexion.


A rapid rate of heartbeat.


Pulse has diminished.

Bald patches of skin.

Breathing problems.

In dogs, peanut butter allergies may be divided into two distinct categories. They’re:

Reactions occurring on a cellular level.

Atopic dermatitis is a skin allergy.

An anaphylactic shock is likely to occur in dogs who are having the most severe allergic response. As soon as you can, get your beloved puppy to the veterinarian. The adrenaline will most likely be administered by your veterinarian.

The good news is that most treatments work and your pets will totally recover. Additionally, your veterinarian may prescribe an EpiPen or other allergy treatments in the case that this occurs again.

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What happens if my dog eats too much Reese’s Pieces?

If your dog ate an excessive amount of Reese’s Pieces, they might be at risk of consuming too much fat and sugar. A single piece of Reese’s Pieces has a nutritional profile:

Dangers of Fat

Fat is an essential macronutrient in a dog’s diet since it aids in the maintenance of healthy eyes, skin, and hair, as well as the proper functioning of the brain.

If you have a 33-pound dog, you should consume around 14 grams of fat each day, according to the National Academy of Sciences’ recommendation.

Consuming too much fat, on the other hand, might contribute to weight gain because of the increased production of fatty tissue. Internal organs, joints, and bones will be put under a great deal of stress by the fatty tissue, which can lead to deterioration of physical processes.

Diabetes, obesity, and heart disease can all result from a long-term high fat percentage in the diet.

Having your dog eat an excessive amount of fatty food in an extremely short period of time might increase the risk of severe pancreatitis.

Inflammation of the pancreas is caused by a quick consumption of fat, causing the pancreas to break down inside.

Vomiting, stomach discomfort, fever, tiredness, and a hunched back are all signs of pancreatitis.

If treated quickly, pancreatitis in dogs usually recovers. However, the scenario can swiftly devolve into a life-and-death crisis.

A dog’s life can be saved if prescription medicines, anti-inflammatory meds, and intravenous fluids are delivered.

Dangers of Sugar

More than half of the sugar in each Reese’s piece.

Reese’s Pieces can cause a variety of acute gastrointestinal problems in dogs, thus they should not be given to them.

Diarrhea and vomiting are two of the most common symptoms of sugar abuse. This happens because sugar sucks water from the intestines. Dehydration and other problems with the digestive tract may result as a result.

Dogs, like humans, gain weight and get teeth rot when they eat sugar.

In the long run, feeding your dog high-fat, high-sugar diets can lead to metabolic problems, diabetes, and obesity in dogs.

A dog’s health might swiftly deteriorate from one illness to another if they have more than one going on at the same time.

Poor nutrition and an unhealthful regimen will cause your dog’s body composition to shift from mainly muscle to mainly fat. As a result, it will be less likely to get up and roam around.

If you don’t exercise your dog, it will gain weight and become more likely to get diabetes. In dogs with diabetes, the body’s ability to use food for energy is compromised because the body can no longer make enough insulin.

To generate corrosive acids in your dog’s mouth, oral bacteria utilize sugar as fuel. Enamel and dental covering can be removed by the acid, resulting in tooth decay.

More sugar in the form of Reese’s Pieces will not help prevent or delay dental problems in your dog, which affects at least 80% of canines by the age of three.

Despite the fact that Reese’s Pieces are not toxic to dogs, it would be best to provide them nutritious, canine-friendly options instead.

Nutritional Profile of Reese’s Pieces (Per Piece)

This equates to roughly 4 calories, 0.18 grams of fat (0.16 grams of saturated fat), and 0.49 grams of carbohydrates in one piece of Reese’s Pieces (0.41 grams of sugar).

80 percent of the sugar and fat in a Reese’s Pieces candy bar. Raw sugar and fat are what your dog is ingesting if it consumes this treat. A dog may safely eat one or two Reese’s Pieces, but due to the candy’s small size and bright colors, it’s easy for a dog to eat a lot of it if you’re not paying attention.

Your dog may easily get their hands on a Reeses Pieces plastic package if you store it on a high shelf, out of sight, or in a place where they can’t get to it. Your pet can consume the entire package if it’s within their grasp. This can be fatal because of the long-term and short-term effects of the high intake of sugar, fat, and calories.

As a result of your dog’s potential GI distress, some of the more immediate repercussions include vomiting, diarrhea, constipation, and/or stomach pain and bloating.

Overconsumption or eating them daily can cause problems including diabetes, obesity, heart disease, and even pancreatitis. Let’s take a closer look at each of these ramifications.

Danger of sugar in Reese’s Pieces

Because a single piece of Reese’s Pieces has more than half its weight in sugar, it’s already too much for your dog to eat. The amount of sugar in this treat is far too high for dogs, and even a small amount can cause serious digestive problems.

Dogs might have stomach problems, such as diarrhea and vomiting, if they have too much sugar in their diet. This causes them to lose fluids from their bodies, which then ends up in their digestive system. It’s possible that your dog is suffering from intestinal problems and is therefore becoming dehydrated.

Your dog may also begin to put on weight.

You shouldn’t offer your dog Reese’s Pieces every day; save them for special occasions. If you offer them to your dog every day, they will have a high fat percentage in their body, which can lead to obesity, diabetes, and metabolic disorders.

Your dog’s health may deteriorate over time as one health condition progresses into another. A high fat content in your dog’s body can contribute to joint issues, a lack of activity, and a lack of motivation to move about.

It’s also possible that your dog’s teeth will begin to deteriorate. According to Brandywine Valley, 80 percent of dogs have periodontal disease or dental disease by the time they are three years old, thus adding sugar to your dog’s diet will not help.

Your dog’s oral bacteria will utilize the sugar as a source of energy to produce caustic acids. The enamel and covering of your dog’s teeth can be removed by this sort of acid. Eventually, this results in tooth decay and cavities. Yikes!

Consider feeding your dog a healthy treat like a dog-friendly version of the popular human favorite, Peanut Butter Cups. Brussel Sprouts, which have a similar feel to Reese’s Pieces but are more crunchier and tastier, are a healthy alternative.

Although some dogs may not be fond of veggies, we can understand that. Because she won’t eat vegetables, we offer our Labrador this tasty Dentastix treat instead.

This dog treat helps to enhance your dog’s dental hygiene by cleaning their teeth, decreasing plaque and tartar accumulation, and refreshing their breaths with three tastes.

In terms of fat, these Reese’s Pieces aren’t bad at all.

Danger of fat in Reese’s Pieces

A certain amount of fat is necessary for the brain and skin, coat, and eyes of dogs, but too much fat consumption can lead to an increase in fatty tissue in dogs.

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Even a 33-pound dog should only take 14 grams of fat per day, according to the National Academy of Sciences (NAS).

This will lead the dog to put on weight that it doesn’t need to.. A dog’s internal organs and joints will be put under stress due to the fatty tissue, which is harmful to the dog’s health.

Having a high amount of fat in their body can lead to heart disease, obesity, and diabetes in the long run. Acute pancreatitis can occur if your dog consumes a big amount of high-fat food in a short period of time.

Acute pancreatitis can be life-threatening because of the abrupt onset of inflammation and ultimate breakdown of the pancreas caused by the sudden ingestion of fat.

Pancreatitis can cause a variety of symptoms, including:


Pain in the abdomen.


In a hunched or bowed position due to discomfort.


If you see any of these symptoms, get your dog to the doctor immediately so that the pancreas may be treated before it deteriorates any more and becomes a life-threatening scenario. An early diagnosis means your dog has a better chance of recovering from pancreatitis.

If your dog’s condition is critical, your veterinarian will likely recommend intravenous fluids, anti-inflammatory drugs, and pain meds to help your pup survive.

Can you feed Reese’s Pieces to your dog if they are past their best-by-date?

As with human food, we do not advocate giving your dog Reese’s Pieces that have passed their best-by date. Reece’s Pieces have a lengthy shelf life because they are packed with sugar. If you eat Reese’s Pieces that have passed their best-by date, they will taste and feel different.

Dogs have no way of knowing or caring. It’s recommended not to offer our dog anything over its expiration date as a conscientious pet owner.

Should You Induce Vomiting If Your Dog Ate Reese’s Pieces?

If your dog ate Reese’s Pieces, there’s no need to make him puke. Only if they’ve ingested multiple servings or packets at once may you need to induce vomiting.

Hydrogen peroxide can be used to force your dog to vomit in the event that this has already occurred.

As a general rule, if your dog vomits or has diarrhea, you may just make sure it has plenty of water to drink and then put it on a strict fast for the remainder of that day.

It is possible that eating a large amount of Reese’s Pieces might cause pancreatitis since the dog’s pancreas is unable to digest the rapid influx of fat and sugar.

If this happens and you see your dog hunched over in discomfort or acting sluggish, call your veterinarian right once so they can give you more instructions.

What can I do if my dog ate too many Reese’s Pieces?

If your dog has eaten too many Reese’s Pieces, do not try to make him puke. This can be harmful to your dog. As soon as you believe or know that your dog has eaten a large amount or a large number of Reeses Pieces packages or servings, contact or visit your veterinarian immediately.

Your dog’s veterinarian will be able to guide you on the best course of action. It’s possible that they’ll urge you to employ 3 percent hydrogen peroxide at a quantity equal to 1 teaspoon for every 5 pounds of your dog’s body weight in order to induce vomiting.

In general, keep the Reese’s Pieces out of reach and encourage your pet to drink plenty of water and abstain from food for the remainder of the day. If your dog has diarrhea or vomiting, let him fast.

Does Reese’s Pieces Have Peanut Butter In Them?

Yes, the shells of Reese’s pieces contain peanut butter. Its tiny size makes it easy for a dog to take big amounts, but this is not beneficial for the dog’s regular functioning. Milk, butter, brown sugar, and peanut flavor are some of the ingredients in Reese’s Pieces’ filling.

Is there chocolate in Reese’s Pieces? It also contains a lot of chocolate. It’s best to just utilize it when necessary. Dogs can like Reese’s Hershey bits.

Are Reese’s Pieces Poisonous To Dogs?

No, they’re good for you. Dogs cannot be poisoned or harmed by it in moderation. In big doses, it can cause major gastrointestinal problems for dogs. If the level of certain components, such as chocolate and fats, is excessive, it is not safe for dogs. It is beneficial for dogs to eat a little amount of dark chocolate Reese’s pieces.

How Many Reese’s Pieces Are In A Bag?

More than 1,700 Reeses pieces are in a single bag. It has a weight of around 48 ounces. The cross-section of Reese’s pieces includes peanut butter and chocolate, as well as a variety of additional ingredients. Each bag of Reese’s Pieces contains a total of 17 hundred sweets.

M&Ms VS Reese’s Pieces

can dogs eat reese's pieces

Testing revealed that M&Ms are essentially peanut butter in disguise, as they contain both peanut butter and a distinctly peanut butter flavor. They detect the chocolate flavor in Reese’s Pieces. This indicates that M&Ms do not contain any chocolate, but Reese’s bits do.

Can Dog Eat Reese’s Pieces Large Bag?

Yes, dogs can consume a large bar of Reese’s pieces. Is it possible for dogs to eat Reese’s chunks? It’s advisable to save it for special occasions or as an occasional treat. Dogs’ health might decline if they eat a lot of Reese’s pieces.

Are Reese’s Pieces Safe For Dogs?

It is true that Reese’s pieces are healthy for dogs to eat, but only in moderation, given their high fat and sugar content. They aren’t as well-fed as dogs are. That’s why it’s advisable for dogs to only use it a few times a year.

Are Reese’s Pieces Gluten Free?

Gluten is not present in Reese’s candy. Yes, you may check the ingredients of Reeses bar, however there is no such ingredient on the list of candy.

Do Reese’s Pieces Have Xylitol?

Is it possible for dogs to eat Reese’s chunks? No, xylitol is present in Reese’s pieces. Reese’s Pieces contain both chocolate and peanut butter. This candy does not include any kind of artificial sweetener. Only milk, wax, glaze, salt, artificial color, hydrogenated oil, syrup, and peanut are used in this confection.

Proportion Of Orange Reese’s Pieces

If a bag contains a thousand pieces of candy, around 40% of the sweets are orange-flavoured.

Can Dog Eat Reese’s Pieces Candy?

Mini Reese’s pieces are safe for dogs to consume. You may offer it to your dogs as a reward once a week. If you use it frequently, you may get upset stomach and other digestive disorders.

Do Reese’s Pieces Have Dairy?

Is it possible for dogs to eat Reese’s chunks? Dairy products have also been found in Reese’s Pieces candy bar. Lactose sensitive dogs should not eat it. Lactase, a kind of enzyme, is missing from the body. They have major digestive problems since they are unable to digest milk products.

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How Long Do Reese’s Pieces Last

It is not safe for dogs to eat bits of Reese’s chocolate. Reese’s pieces have a shelf life of six to nine months after opening, therefore it’s best to store them in the refrigerator.

How To Prevent Dogs From Eating Reese’s Pieces Again?

It is one of the finest ways to keep your dog away from anything if you store it in an area that is inaccessible to your dog. If you didn’t allow them to eat while you were away, that might be helpful. A crate or a separate room for your dog might be used for this purpose. Keep your dog from Reese’s bits by using these methods.

How To Treat If My Dog Ate Reese’s Pieces Excessively?

It is not permissible to cause vomiting in dogs if they consume large amounts of Reese’s Pieces. Dogs can be harmed by it. A visit to your veterinarian is recommended if your dog ate a significant amount of Reese’s Pieces.

Thus, an effective strategy for the treatment of dogs will be obtained. Using 3% hydrogen peroxide and one teaspoon for five pounds of body weight is recommended by your veterinarian if you want your dog to vomit.

Do not feed them Reeses the next day, unless absolutely necessary. You should tell them to drink a lot of water. It will also lessen the toxicity of the environment. Even if you aren’t experiencing any of these symptoms, drinking a lot of water can’t hurt.

What If Dogs Eat A Bag Full Of Reese’s Pieces?

Dogs require lipids as a source of energy and are classified as macronutrients because of this. Keeping the brain active, maintaining a healthy coat, and ensuring eye health are all benefits of the supplement. The fatty tissue grows as a result of excess body fat.

Thirty-three-pound dogs are believed to consume roughly fourteen grams of food a day. Obesity is the mother of all ailments because extra fat in the body results in excess fat on the body. Damage to the internal organs might occur.

Because Reese’s pieces have a high fat level, it is advised that you do not allow your children to consume them.

Reese’s pieces also have a high sugar level. Diabetes, obesity, and cardiovascular disease are all possible side effects of smoking. Acute pancreatitis occurs when a dog consumes fat-rich diet. The pancreas may become inflamed, resulting in internal pancreatic disintegration.

What Health Symptoms Will Occur If Dog Eats Reese’s Pieces?

If your dog overconsumes on Reese’s pieces, he or she will suffer grave health consequences. We must discover what is causing dogs’ health to decline. In dogs, bloating, stomach discomfort, constipation, diarrhea and vomiting are all possible side effects of gastrointestinal issues.

It can progress to a variety of deadly conditions, including pancreatitis, heart disease, obesity, and diabetes, if the symptoms are not addressed.

So, Can dogs eat Reese’s Pieces?

Only a few Reese’s Pieces can be consumed by dogs. You should limit yourself to no more than two or three servings every meal. Dogs may quickly swallow the entire bag of this candy due to its tiny size and bright colors. Acute pancreatitis, diarrhoea, and vomiting can all result from eating too many Reese’s Pieces, due to the high fat and sugar content.

Tooth decay and weight gain, as well as diabetes and heart disease, are all conditions that your dog is more likely to develop as a result of poor dental care.

Consider giving them a couple as an occasional reward the next time you succumb to their puppy dog looks.

Strictly speaking, this site does not provide medical advice.

Text, graphics, photos, and other materials on this website are provided only for informative reasons. To the best of our knowledge, no information on this site is meant to be a substitute for professional advice or treatment from a veterinarian. If you have any concerns about your pet’s nutrition, always see your veterinarian or another experienced health care practitioner.


Can dogs eat Reese’s Pieces? We thought they couldn’t, until we were contacted by a reader named John who said that his dog loves to snack on Reese’s Pieces and he even has some of his own. He even said he gave him a bunch of them when he left to go on vacation. So, we’d like to know, can dogs eat Reese’s Pieces? The answer is yes. And John says his dog’s name is Tux. I also think he looks pretty cute.


Each piece of Reese’s contains over 50% sugar by content.

Your dog does not need such a high sugar intake and consuming Reese’s Pieces can lead to various immediate gastrointestinal issues.. Common stomach problems caused by sugar consumption include diarrhea and vomiting.

Reese’s Pieces are a product extension of the Reese’s Peanut Butter Cups line; they were designed to capitalize on the success of the chocolate-covered peanut butter cups, though unlike the cups, they have no chocolate.
Yes, dogs can eat peanut butter as long as it is fed in moderation and does not contain xylitol, so get out that pet-safe peanut butter jar and share the good news.
What can I do if my dog ate too many Reese’s Pieces? First, you should not induce vomiting if your dog ate too many Reese’s Pieces. Doing so can actually harm your pup. If you suspect or know that your canine has consumed several packets or servings of Reese’s Pieces, call or visit your vet as soon as you can.


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Princy Hoang
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