As pet owners, we know the importance of feeding our dogs a tasty, balanced diet to ensure they are in optimal health and can live their canine lives to the full. But sometimes your pooch may need a little extra supplementation to keep their energy and bounce on track. Calcium is one of the essential minerals all dogs need to ensure their bones, heart, muscles and immune system remain fully charged and so should play an essential part in their daily diet.
Ideally dogs should be getting their daily amount of calcium in their everyday food but there could be times when you may consider adding in a supplement to top up their calcium levels. Some dogs may be deficient due to diet, pregnancy or an underlying health condition and so adding in a supplement could be a good idea to ensure they get enough calcium per day. If so, the first step you should take is chat to your vet to ensure giving your pet extra calcium is the right way to go.
In the meantime, we take a look at some of the best calcium supplement for dogs you can buy, so you are ready if your pet needs a top up.
The Best Calcium Supplement for Dogs
This wholefood option from New Chapter is a quality calcium supplement sourced from plants rather than limestone and comes with fermented vitamin D3 for improved absorption. Non-GMO and gluten free, it is also kind on the system if your dog or dogs are sensitive souls. Then there is vitamin K2 which helps to direct the calcium to the bones, supporting bone health and helping to protect against bone loss and the onset of osteoporosis as well as support heart health. Each tablet is slow release and up to three can be taken per day with food, depending on your pet’s body weight. This is a formulation for humans that is popular with pet owners due to the high quality and superior absorption but do check with your vet the correct dose to administer to your furry friend.
High strength plant-based source of calcium
Vitamin D3 for improved absorption
Vitamin K to direct calcium to the bones
Non-GMO and gluten free
- Brand New Chapter
- Weight4.8 ounces
Specifically formulated for growing dogs, Sure Grow calcium for puppies aims to promote optimal bone, ligament and tendon development during their rapid growth. This balanced phosphorous and calcium supplement for dogs also includes vitamin A and D3 for improved absorption. Administering these chewable calcium tablets for dogs should be also hassle-free thanks to the tasty formula your dogs will love. Or crumble over their daily meal to ensure they get all the essential calcium they need to grow into bone-healthy dogs. Sure Grow can also help with bone and ligament conditions, including hip dysplasia, rickets and poor ligament growth. With this great value 100 tablet pack, simply give your pup between half and two tablets a day, depending on their weight to ensure they get the right amount. One of the best calcium supplements for puppies.
Calcium carbonate and phosphorus supplement for pups
Added vitamin A and D for absorption
Can also be used for pregnant or nursing dogs
May help with certain bone and ligament conditions
- BrandLambert Kay
- Weight11.2 ounces
Derived from seaweed sourced from Iceland’s Atlantic seabeds, this calcified extract is packed with a host of nature’s ocean wonders. As well as high levels of calcium, you also get magnesium and the all-important phosphorous plus potassium and zinc. But what makes this Seaweed Calcium unique is its minute honeycomb texture which increases porosity, meaning there is enough calcium available for your dog’s body to absorb. In easy to administer powder form, each 3g teaspoon gives all the additional calcium benefits your pooch may need per day to keep his bones, muscles, heart and immune system healthy. Simply sprinkle this natural calcium for dogs over your pet’s food and the tasteless powder blends nicely into the mix.
Sourced from seaweed beds in Icelandic waters
Nutrient packed, including calcium, phosphorous and potassium
Porous texture means greater absorption
Tastless and odorless power supplement
- BrandAnimal Essentials
- Weight12 ounces
If you are looking for one of the best all-round nutritional dog supplements to boost your pet’s health, then check out NaturVet’s All-in-One Support. Along with calcium, you also get all the essential vitamins and minerals as well with digestive enzymes, omegas 3,6 and 9 plus glucosamine and chondroitin. The result is a soft chew with enough calcium to support their digestion, skin, coat and joint health. And your dogs will love the taste of these chewy treats, which you need to give with each of their twice daily meals, although the dosage can increase with larger dogs. Wheat-free, each container has 60 chews and the re-sealable lid means they can stay fresh right to the end of the pot.
All-in-one supplement for heart, joint, skin and digestive health
Balanced calcium and phosphorous
Omega fatty acids, glucosamine and chondroitin
Tasty, wheat-free soft chews
- Weight9.8 ounces
If the bone health of your pooch is a concern, Pure Synergy have produced a premium calcium supplement that could give your pet an extra boost. At the top end of our review budget, you do however get top quality ingredients for your money, thanks to the three-part formula. Bringing together plant-based nutrients, essential minerals and nourishing botanical extracts, Bone Renewal is a powerhouse of natural goodness that works to support bone density, mobility and strength. Its calcium source comes from Icelandic red algae, boosted by vitamins D3 and K2 and an impressive 74 trace minerals and phytonutrients, all sourced from the pure waters of Iceland. This is a calcium supplement that is for humans so do chat to your vet as to the appropriate dosage and amount of calcium needed for the size of your dog. But with 150 capsules per pot, you do get a lot of calcium supplements support for your money.
Bioavailable calcium from Icelandic red algae
Added herbal extracts, vitamin D3 and K2
Supports and nourishes bone density
Promotes mobility and strength
- Brand Pure Synergy
- Weight7.2 ounces
For those moments of growth in puppies or to support a pregnant mother before, during and after the birth of her litter, these chewable calcium dog supplements are an easy to feed alternative to capsules or powder. With a delicious roast beef and liver flavor, simply give one to your pet before their main meal, or crumble over your dog’s food. These calcium pills for dogs have the right amount of calcium and phosphorous, boosted by vitamins A, C and D3 to supplement any deficiencies. The targeted formula can help your pup in their growth spurts, supporting and promoting bone formation, density and strength. And they can also help to replenish calcium levels in pregnant or lactating bitches susceptible to calcium deficiency so she can support her pups as well as her own health. Dosage depends on the size of your dog per kilogram and each 60-tablet tub can last up to two months.
Tub of 60 chewable tablets
For growing pups or pregnant/lactating dogs
Supports bone growth, density and health
Added phosphorus plus vitamins A, C and D3
- Weight7.2 ounces
If you want to play it straight when it comes to boosting your pet’s bone health, then this quality calcium supplement for dogs is worth checking out. Made from steamed and then ground up natural bone meal, UpCo dog supplements provide the necessary balanced amount of calcium and phosphorus to support bone, teeth and tissue development. This is an excellent calcium supplement for puppies, young dogs and pregnant or lactating pets as it helps to promote healthy growing bones. Derived from pigs, the bone meal is also unbleached, and you get 8-10% calcium carbonate, naturally balanced with a minimum of 4% phosphorus. And it couldn’t be easier to get your pooch to take it – simply add half to two teaspoons of the bone meal powder, depending on the age and life stage of your dog, to their main meal. This bone meal is a great source of natural calcium for both dogs and cats – just check the correct dosage for their size.
All-natural calcium phosphorus supplement for dogs and cats
Made from ground porcine bone meal
Unbleached and easy to administer powder form
Good for puppies, lactating or pregnant dogs
- Weight15.4 ounces
With a good balance between easy to stomach calcium carbonate and phosphorus for optimum bone health benefits, these one a day tablets are a convenient way to incorporate added calcium into your dog’s diet if they need a little extra support. And as one of the best everyday calcium supplements, there is also added vitamin D for fast and efficient absorption. Safe enough for cats too, these calcium supplements for dogs are also chewable, so your pup thinks he is getting a treat and you can easily split each pill if you need a smaller dose. For just less than $20, Pet Cal Tablets are middle of the road budget-wise, but each tub should last you up to two months.
Chewable one-a-day calcium tablets
Balanced calcium phosphorus formula
Added vitamin D for absorption
Calcium supplements for both cats and dogs
- Weight4.8 ounces
If you pooch is reluctant to take their calcium tablets, then check out PetAg’s calcium and phosphorus tablets as they come complete with a delicious cheesy taste! As well as tasting pretty good, these tablets are also excellent source of calcium and phosphorus, balanced in line with the National Research Council’s recommendations. Fortified with vitamin D, the result is a chewable tablet with optimum absorption to support bone growth, development and general health. With most healthy dogs not needing extra supplementation as long as they eat a balanced diet, PetAg is particularly suited to supporting the bones of young pups as they go through their fast growth spurts as well as pregnant or nursing bitches who may be experiencing lower calcium levels as they look after their new brood. A good value buy for when your dogs needs a little extra calcium support.
Easy to chew calcium phosphorus supplement
Tasty natural cheese flavor
Balanced formula in line with the NRC
Ideal for growing pups or pregnant/lactating dogs
- Model 99622
- Weight5.6 ounces
Our final calcium supplement for dogs is a natural beauty – made from 100% wild harvested and bioavailable marine algae sourced from cold, pure Icelandic waters. In a convenient powder form so you can sprinkle your dog’s daily dose over their food, Nature’s Best Seaweed Calcium is also vegan, GMO and allergen free, so a good option for more sensitive dogs. The powder is also tasteless so could be a good choice if you struggle to get your pet to take other calcium supplements. And although it does have a little bit of an odor, this could actually be a draw for your pet! This natural seaweed calcium powder is good for supporting your dog’s bone health, particularly during growth periods as well as being good for their heart, teeth, skin and coat. We also like the fact that along with calcium and magnesium, this supplement is also packed with 72 trace minerals that can help boost your pupper’s all-round good health. The general directions are one teaspoon per 24 ounces of food, so if you are unsure as to the right amount for your size of dog, please chat to your vet for advice.
Calcium supplement from wild harvested Icelandic marine algae
Magnesium plus 72 trace elements to support bone health
Vegan, GMO and allergen free
Tasteless powder for easy administration
- BrandAmerican Pet Botanicals
- Weight14.1 ounces
Best Calcium Supplement for Dogs Buying Guide & FAQ
Why is Calcium Important for Dogs?
Just as it is for their human, calcium is an essential mineral to support your dogs' health and wellbeing. And while a balanced diet can ensure your pet has all the calcium his body needs for optimum functioning and bone health, sometimes your pooch may need extra supplementation or a maintenance dose to keep him in tip top condition. Here are the main health reasons why sufficient calcium is so important for your dog:
- Strong bones and teeth: Calcium is one of the essential building blocks for strong teeth and bones and it can also help guard against bone-related diseases such as osteoporosis and rickets as well as promote bone growth and development in pups and younger dogs.
- Neuromuscular health: Calcium is needed for proper nerve function, ensuring your pooch’s muscles contract and work the way they should for mobility and strength. It also plays a key role in the healthy ‘firing’ of your dog’s nerve impulses as well as supporting hormone secretion.
- Heart function: Calcium helps with a healthy heart by supporting the heart’s muscle contractions as well as helping blood to clot.
- Healthy immune system: Calcium is needed to support a healthy immune system and its appropriate response in your dog, helping them to fight off infections and disease.
What Can Cause High Calcium Levels in Dogs?
It is possible for your dog to have too much calcium in their system and this can be caused by them eating too much calcium-rich food or being over-supplemented. However, there are some health issues that can also raise their calcium to high levels, including chronic kidney disease, bone infection, and cancer. Too much calcium can be as harmful to your pooch as too little and can result in a range of unpleasant symptoms, including nausea, kidney stones, and potential kidney failure. If you suspect your dog is getting too much calcium, check the ingredient label of their current dog food or the dosage of any calcium supplement you may be giving them. If you are in any doubt or suspect an underlying health condition could be causing the problem, consult your vet immediately.
What Causes Calcium Deficiency in Dogs?
Low levels of calcium in your pet’s blood is known as hypocalcemia, which indicates they are deficient in this essential mineral. Signs of a calcium deficiency can include soft and fragile bones (such as rickets), uncontrollable muscle twitching, restlessness, lethargy, stiffness, excessive panting and in more severe cases, convulsions.
There are several main reasons why your dog may be suffering from hypocalcemia:
Poor diet: A balanced diet is essential for your dog’s health, but it can be easy to not feed them sufficient calcium for their canine needs, particularly if you are giving them a raw-food or homemade diet. Calcium also needs to be consumed with the right level of phosphorus (the recommended amount is 1.2 parts calcium for every 1 part of phosphorus) for optimum nutrition. Ensuring you are feeding your pet calcium and phosphorus-rich food in the right quantities will provide them with sufficient levels for all-round good health.
Poisoning: It is possible for your curious pup to eat something they shouldn’t which can interfere with and either spike or reduce the calcium levels in their blood. The main culprits are antifreeze and some plants, including rhubarb leaves, star fruit, and oat grass.
Pregnancy and nursing: Dogs in late-stage pregnancy will find their calcium levels are under greater demand from their babies as they grow inside the womb. This deficiency can then continue after the birth, as the litter is nursing from their mother, who will be losing calcium through her milk.
Underlying illness: Although their diet may be balanced, your pet may still experience symptoms of calcium deficiency, which could be caused by an underlying health condition such as kidney disease. Poorly functioning kidneys can throw the calcium/phosphorus balance out of kilter, resulting in deficient levels. Acute pancreatitis, as well as a damaged parathyroid gland, can also lead to a calcium deficiency in your dog’s blood.
Natural Sources of Calcium for Dogs
As well as a supplement and a balanced dog food, there are some other excellent natural sources of calcium you can work into your dog's diet. As long as your dog is not lactose intolerant or has an allergy, dairy products, including cheese and yogurt can provide a good level of calcium, as can oily fish such as salmon and tuna. Ground bone is also an excellent source of both protein and calcium. Unlike whole bones which can be problematic for your dog, you can buy good quality ground bone, which comes in a powdered form that is easy to add to their meal. Other natural sources of calcium safe to feed to your hound include eggs and crushed eggshells as well as plant-based calcium from broccoli, kale, dark leafy greens and spinach. So, before you consider adding calcium supplements to your dog's routine, look at boosting calcium-rich food to their daily diet.
Best Calcium Supplement for Dogs FAQ:
Q: What is the best source of calcium for dogs?
A: The best source of calcium for dogs is a well-balanced diet, which is tailored for canines and provides them with the right balance of vitamins and minerals for optimum health. Always look at the ingredients label of their bought dog food (either wet or dry) to ensure it includes whole foods that provide both calcium and phosphorus. If you are concerned about the amount of calcium your pooch is getting via their diet, you can always add in a calcium supplement, but always stick to the recommended daily dose for the size of your pet.
Q: How much calcium does a dog need?
A: According to the National Research Council (NRC), the recommended daily amount of calcium healthy adult dogs need is 50mg per kilo of body weight. However, the dosage does also depend on the age, sex, and size of the dog as well as their health and whether they are pregnant. It's always a good idea to chat to your veterinary professional about the calcium requirements for your pet if you are looking to supplement their diet so that they are getting enough.
Q: How safe are calcium supplements?
A: When used correctly and within the recommended daily dose for their age, weight, and size, calcium supplements are safe for both your dogs and cats. Calcium is best sourced through their food diet, with a supplement used to top up any deficiencies, which is why it is best to consult your vet before choosing to give your pet a calcium supplement as they may not actually be deficient. Giving your pet too much calcium can actually cause health issues for your dog, particularly if they are taking them in excessive amounts over a longer period of time, so make sure you are also aware of the symptoms and side-effects of too much calcium in your dog.
Q: Can I give my dog human calcium supplements?
A: There are some excellent calcium supplements that are specifically formulated for dogs, although it is possible to use ordinary calcium supplements for humans if need be. The essential thing to be aware of is that you always give your dog the correct dose, which will differ to the recommended dose for humans, who are larger and weigh heavier. To be sure whether human calcium supplements are ok for your particular pet, a good idea is to first discuss calcium supplementation for your dog with a vet, who can recommend products and specific supplements as well as guide you as to the correct dose. And look for calcium supplements that have vitamin D to aid absorption as well as the correct levels of calcium to phosphorus for a balanced, effective addition to your pet’s diet.
Our Top Pick
A top-quality calcium supplement sourced from plants, each New Chapter tablet is slow-release, ensuring your pooch gets the bone-health boost they need in a sustained way. No-GMO and gluten-free, this is also a supplement that is kind on dogs with sensitive tums and is fortified with vitamin D3 for improved absorption and vitamin K, which directs the calcium straight to the bones. A popular formula for both humans and their pets, New Chapter Calcium Supplement is our top pick when it comes to an effective and easy to use product for your dog.