Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

10 Foods With Vitamin C for Dogs: Vet Reviewed Nutrition Facts & Info

woman giving broccoli to her dog

Vitamin C, also known as ascorbic acid, is incredibly important for normal immune function in mammals, including dogs. It promotes the activation of white blood cells, which is the body’s principal means of fighting off infection.

It also has some other functions we’ll discuss later. However, dogs are able to produce vitamin C within their bodies, unlike humans, and so don’t need a dietary source. But first, are there safe foods you can offer your dog to get more Vitamin C into their system? Let’s take a look.

Dogster divider_v2_NEW_MAY_24_

The 10 Foods with Vitamin C for Dogs

1. Commercial Dog Food

Most dog food manufacturers use vitamin C to fortify their blends because it’s good for your dog and acts as a preservative. Feeding a high-quality dog food is the easiest option because there’s no preparation involved, and chances are your dog won’t turn its nose up at it.

french bulldog eating
Image Credit: Tienuskin, Shutterstock

2. Bell Peppers/Capsicum

These non-spicy members of the chili family can be a tasty and refreshing snack for your dog that is packed with vitamin C and lots of other great nutrients. Best served raw, bell peppers can be sliced into strips or bite-sized pieces and served cold on a summer’s day. The seeds are safe to eat; they’ll just make a mess!

Having one of the highest levels of vitamin C of all fruits and vegetables, bell peppers are an ideal ingredient for humans and guinea pigs, too, another species that can’t make their own.


3. Broccoli

Broccoli can be fed to your dog raw or cooked, as long as you don’t add any oils or seasoning. You should always serve it in small quantities because the florets contain isothiocyanates which cause gastric irritation in dogs.

broccoli in a plate
Image Credit: Pixabay

4. Brussels Sprouts

The best way to serve Brussels sprouts is to boil, steam, or microwave them for your dog and keep them plain. Steaming will preserve most of the nutrients. Choose firm and green sprouts, wash them, and cut off the stem, so the leaves are left intact.

Steam them for around 5 minutes or microwave them in water for 8 minutes. Boiling will take longer (around 10 minutes) and preserve fewer nutrients. Never serve them raw, as they’ll be too hard to digest.


5. Oranges

Oranges are safe for your dog in small quantities, although not all dogs will enjoy the tart taste. Oranges have a moderate sugar content, and if your dog eats too much, it can suffer from gastrointestinal upset. Make sure you peel the orange and remove all the seeds before offering them to your dog.

A peeled orange on the wooden background
Image Credit: Ahanov Michael, Shutterstock

6. Cauliflower

Cauliflower is considered to be a yummy meat substitute and a nutrient-rich superfood. Dogs can eat it raw or cooked, but, as always, keep it plain. You can sprinkle it over their regular dog food for a crunchy topping or give your dog a small piece as a treat.


7. Carrots

Cooked and raw carrots are good options for dogs, but you should wash and peel them to remove all dirt and pesticides. You must also cut them into bite-sized chunks to prevent choking, especially in smaller dogs.

fresh and cut carrots on wooden board
Image Credit: New Africa, Shutterstock

8. Apples

Peeling an apple will make it easier to digest, and cutting it into bite-sized pieces is essential to prevent choking. You will also need to remove all the seeds, as they contain a small amount of cyanide which is toxic and can harm your dog in large doses.

The apple core and stem could also choke your dog, so removing them is best.


9. Melons

You will first have to remove the seeds and rind from your melon to prevent choking. The rind is also difficult to digest, so it’s best to keep this away from your dog entirely. You will need to cut the fleshy part of the melon into bite-sized chunks before serving it to your dog.

Whole and sliced of Japanese melons
Image Credit: Kotcha K, Shutterstock

10. Peaches

Peaches cut into safe pieces are a perfect snack for your dog. Avoid canned peaches as they contain high amounts of sugar and might also be treated with artificial sweeteners or preservatives that can upset your dog’s digestive system.

The peach pit is particularly hazardous as it’s a choking hazard and contains amygdalin, a sugar-cyanide compound. A dog would have to consume several peach pits for them to be affected, but it’s still worth remembering, as there is no point in taking the risk. Lastly, if you have a peach tree in your garden, be aware that the leaves and stems contain cyanide.

Dogster divider_v2_NEW_MAY_24_

Frequently Asked Questions (FAQ)

Why Is Vitamin C Important?

Humans need to get Vitamin C from their diets, but dogs can synthesize their own. The American Feed Control Officials (AAFCO) haven’t set a requirement for Vitamin C in food. Vitamin C is an important antioxidant that reduces inflammation and protects the body from dangerous free radicals and premature aging. It also:

  • Assists in Vitamin E production
  • Is an anticarcinogen
  • Prevents the formation of bladder stones
  • promotes the development of healthy bones and skin through the production of collagen

What Are the Signs of Vitamin C Deficiency in Dogs?

Vitamin C deficiency is very rare in dogs. A few signs indicate that your dog is suffering from Vitamin C deficiency. These include:

  • Frequent bone injuries
  • Foul breath
  • Joint pain
  • Slow wound repair
  • Soft bones
  • Swollen/bleeding gums
  • Weakness

If you notice any of these signs, contact a veterinarian immediately. Vitamin C deficiency is rare in dogs. Also, it’s vital to include a vet in the decision to add a new food to your dog’s diet.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

Can Dogs Overdose on Vitamin C?

Thankfully, Vitamin C is water-soluble, and any excess is excreted through your dog’s urine. Occasionally, too much Vitamin C in their diet will lead to diarrhea.

Dogster divider_v2_NEW_MAY_24_

Conclusion

Vitamin C is not needed in your dogs’ diet, and thankfully they can synthesize it themselves. There might be an occasion when you think it’s wise to introduce some Vitamin C-rich foods but remember, before adding any of these suggestions to your dog’s diet, speak to a vet first.

Some foods can cause gastrointestinal upset, especially fruit which is high in sugar—a vet will be able to help you with portions and how often to feed your dog these foods if they are deemed necessary.


Featured Image Credit: Budimir Jevtic, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How Much Do Dog & Puppy Vaccinations Cost in Canada? (2025 Update)

Having a new dog or puppy can be overwhelming, and so can the costs. Being prepared for expenses can help ease your anxiety...

How to Groom a Labradoodle: 10 Vet-Approved Tips & Tricks

Some Labradoodles shed more than others, but they all need to have their coat trimmed to keep it from growing out too much....

Can Dogs Eat Strawberry Ice Cream? Vet-Verified Facts & Safety Guide

Who doesn’t love strawberry ice cream? It is a summer favorite that can be enjoyed in many ways, and your dog’s curious eyes...

Albino & White Dobermans: Info, Pictures, Origin & History

Strictly speaking, full albino and white Dobermans are not the same, though white Dobermans are tyrosinase-positive albinoids or on the albino spectrum. They...

More related

Soft Tissue Sarcoma in Dogs: Treatment, Causes & Prevention (Vet Answer)

Soft tissue sarcomas are a category of tumors that originate from muscle, connective, or nervous tissue in dogs. The tumor arises from an...

Miniature Bulldog (Pug & English Bulldog Mix): Info, Pictures, Care & More

What if we said don’t have to choose between a Pug and an English Bulldog? Would that get you excited? Because it’s very...

How Long Does a Shiba Inu Live? Average Lifespan, Data & Care Guide

Whether you’re thinking about getting a Shiba Inu or you already have one in your home, one thing you’ll want to know is...

My Dog Ate an Earring: Potential Risks, Signs & Next Steps (Vet Answer)

Let’s say you’re getting ready for a night out. You’ve laid out your outfit and gotten ready. All that’s left is the jewelry,...

Keep reading

7 Best Dog Foods for Pitbulls to Gain Muscle in 2025 – Reviews & Top Picks

As pet owners, we all want our companions to thrive and give them the best we can give them when it comes to their nutrition. If you own a Pitbull, you understand that public perception has missed the mark, and...

pitbull eating

9 Best Puppy Foods for Sensitive Stomachs 2025 – Reviews & Top Picks

While our puppies grow, they must consume quality and nutritious food. However, not all puppies transition into solid food easily. Their immune and digestive systems, in addition to their gut bacteria, are developing and getting used to the new food...

puppies eating food from food bowls

Raw vs Cooked Dog Food: Vet-Reviewed Pros, Cons & What to Choose

One of the most common questions that people ask when it comes to their dogs is what kind of food to feed them. There is a great deal of debate regarding raw versus cooked dog food. Some people believe that...

Dogster_Raw VS Cooked Food

How to Cook Pumpkin for Dogs: Recipes & What to Know

Pumpkin is a staple vegetable, especially during autumn, when it even becomes a symbol for the season and we all proudly sport our pumpkin-themed sweaters and show off our pumpkin carving skills. A lot of us get our dogs involved...

homemade pumpkin puree in a bowl

12 Best Canned & Wet Dog Foods in 2025 – Reviews & Top Picks

Feeding our dogs is part of a billion-dollar business. In fact, in the U.S. alone, $42 billion was spent on pet food and treats this year! We all know how vital food is for pets, so finding the right food...

shih tzu dog getting wet food from owner at kitchen

Can a Puppy Eat Adult Dog Food? Vet Approved Facts & FAQ

Bringing a new puppy home is an exciting experience. Plenty of responsibilities are involved, like ensuring your new pup gets the proper nutrition for a long, happy, and healthy life. But what exactly should you be feeding your puppy? Is...

Can a Puppy Eat Adult Dog Food

11 Best Dog Foods for Maltese Tear Stains in 2025 – Reviews & Top Picks

Tear stains are caused by excessive tear production or an inability to adequately dispose of excess tears. While it is true that certain breeds, including the Maltese, are more likely to exhibit tear stains, that doesn’t mean you have to...

Maltese dog eating from a bowl

9 Best Dog Foods for Cavalier King Charles Spaniel in 2025 – Reviews & Top Picks

The Cavalier King Charles Spaniel is a gentle, sweet-natured companion that makes an excellent addition to the family. Unlike some small breeds, the Cavalier King Charles Spaniel does well with children, is easy to train, and does not tend to...

Cavalier King Charles Spaniel puppy hairs stand up