Dogzymes Bone Builder Calcium Phosphorus Supplement
Verified Jun 11, 2026
A mineral supplement powder for dogs designed to boost calcium, phosphorus, and key trace minerals, especially in homemade or raw diets that lack bone content. It uses dicalcium phosphate and ground limestone as concentrated mineral sources, with added zinc, manganese, magnesium, iron, copper, iodine, and cobalt. This can be useful during growth or other times when extra bone support is needed, under your veterinarian’s guidance.
This is a well-formulated calcium–phosphorus supplement intended to balance diets that do not already provide adequate minerals, such as many homemade or raw recipes without bone. The mineral profile is clearly focused on bone health, with appropriate supporting trace minerals. It’s important that owners only use a product like this when a veterinarian or veterinary nutritionist has confirmed that extra calcium and phosphorus are actually needed, to avoid oversupplementation.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
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At a Glance
KibbleLab Review
Strengths
- Provides high levels of calcium and phosphorus along with magnesium and several trace minerals that are important for bone and tooth development.
- Dry powder format makes it easy to mix into homemade, raw, or kibble diets in precise measured amounts.
- Uses standard, highly available inorganic mineral sources commonly used in veterinary and livestock nutrition, which generally provide consistent mineral content.
- Very low protein and fat, so it won’t significantly alter the calorie or macronutrient profile of the base diet.
Considerations
- Calcium and phosphorus levels are quite high, so using this on top of an already balanced commercial food without veterinary guidance can lead to excess minerals, especially in puppies and large-breed dogs.
- This product is intended only as a supplement and not as a complete source of nutrition; it must be used with a properly formulated base diet.
- Multiple inorganic mineral salts may be harsh on very sensitive stomachs in some dogs, so introducing it gradually as directed is important.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Dicalcium Phosphate
Dicalcium phosphate is an inorganic mineral supplement commonly added to dog and cat foods to supply concentrated, bioavailable calcium and phosphorus for healthy bone and teeth formation as well as general metabolic processes. It must be used in balanced amounts (typical Ca:P targets ≈1:1–1.4:1) because improper ratios or excess phosphorus can contribute to skeletal problems in growing animals and worsen conditions like chronic kidney disease, so formulation and dosing should be carefully controlled.
02
Limestone
Limestone (primarily calcium carbonate) is used in pet food as an inorganic mineral supplement and calcium source to help balance the calcium-to-phosphorus ratio and support bone, dental and neuromuscular health. It is important for both dogs and cats but must be formulated at appropriate levels—especially for growing large-breed puppies—because excess calcium can cause skeletal or urinary problems, and only food‑grade limestone should be used to avoid contaminants.
03
Sodium Phosphate
Sodium phosphate is commonly used in pet foods as an emulsifier, acidity regulator and preservative/sequestrant, and it also contributes dietary sodium and phosphorus. While phosphorus is an essential mineral for bone and cellular function, excess phosphate and added sodium can worsen kidney disease, contribute to imbalanced phosphorus levels or affect urinary pH and stone risk, so its inclusion is carefully controlled and should be limited for pets with renal disease or sodium-restricted diets.
04
Mineral Oil
Mineral oil is an inert, petroleum-derived oil sometimes used in pet food manufacturing as a processing aid or coating and is also used medicinally as an oral laxative to relieve constipation in dogs and cats. It provides no nutritional value, is not absorbed like dietary fats, can reduce absorption of fat‑soluble vitamins with prolonged use, and carries an aspiration risk if administered improperly, so chronic or unsupervised use should be avoided and veterinary guidance sought.
05
Manganese Sulfate
Manganese sulfate is a trace‑mineral supplement used in dog and cat foods to supply manganese, an essential cofactor for enzymes involved in bone and cartilage formation, connective tissue health, and carbohydrate and lipid metabolism. When included at recommended levels it helps prevent deficiency-related skeletal and metabolic issues, but excess intake can interfere with absorption of other minerals and may be harmful, so manufacturers follow AAFCO/NRC guidelines to ensure safe inclusion rates.
Nutritional Breakdown
How to read As Fed versus Dry Matter
As fed shows the numbers straight off the label, water included. Dry matter removes the water so you can compare a wet food and a dry food fairly.What is calorie density
How many calories the food packs per unit. Denser foods mean smaller portions for the same calories.Product Details & Brand
Product Specs
Brand
Nature's Farmacy is the flagship brand offering animal health supplements, probiotics, digestive enzymes, and nutritional support products. It focuses on holistic, natural wellness solutions for pets and performance animals, targeting consumers seeking science-based yet natural options for animal health.
Visit Nature's FarmacyManufacturer
Products are manufactured in the USA under strict in-house quality control procedures. The company oversees its production to ensure consistency, purity, and efficacy of supplements, adhering to standard GMP (Good Manufacturing Practices) for animal supplements.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Nature's Farmacy Dogzymes Bone Builder Calcium Phosphorus Supplement has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Nature's Farmacy ever been recalled?
We have no recalls on record for Nature's Farmacy. We monitor the FDA Pet Food Recall Database daily.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall database. Last verified dates reflect our most recent data check.
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