Best Natural Calcium Supplements of 2025

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Natural calcium supplements are a popular choice for those looking to increase their daily calcium intake. These supplements are made from natural sources such as algae, plants, and animal bones. Unlike synthetic supplements, natural calcium supplements are easily absorbed by the body and offer a range of additional health benefits. Some popular natural calcium supplements include bone broth, sea vegetables like kelp and dulse, and herbs like horsetail and nettle. These supplements are a great way to support healthy bones, teeth, and overall health.
At a Glance: Our Top Picks
Top 10 Natural Calcium Supplements
NATURELO Bone Strength - Plant-Based Whole Food Supplement for Bone Health
Get healthy bone support with NATURELO Bone Strength, a plant-based whole food supplement that includes Calcium and Magnesium from Marine Algae, Vitamin D3 from Lichen, and Vitamin C from Organic Acerola Cherries. This complete formula contains 10 vitamins and minerals that work together to support healthy bone building and maintain bone density. Vitamin D3, Magnesium, and Vitamin K2 help your body absorb and use calcium properly. Studies show that adequate calcium and vitamin D as part of a healthy diet, along with physical activity, supports healthy bone density later in life. This supplement is appropriate for vegans and vegetarians, and does not contain GMOs, Soy, Gluten, Yeast, Dairy, Eggs, Nuts, Caffeine, Coloring, Preservatives, or Flavoring.
New Chapter Calcium Supplement with Vitamin K2 + D3 + Magnesium - 120 Count
Get 3-in-1 benefits with the New Chapter Calcium Supplement. Sourced from Red Marine Algae, it is rich in bone-nourishing calcium, magnesium, and 70+ trace minerals, making it different from regular calcium carbonate supplements sourced from limestone rock. The slim calcium tablets have a slow and steady release and are formulated with vitamin D3 for better absorption and vitamin K2 to direct calcium to your bones where you need it most. It not only supports bone density and creation but also heart and joint health. This organic, non-GMO, gluten-free, and kosher supplement is easy to swallow and offers clinical-strength organic plant calcium.
Doctor's Best Calcium Bone Maker Complex
Doctor's Best Bone Maker Complex is a bone support supplement designed to provide key nutrients for healthy bones. It contains organic calcium from ossein microcrystalline hydroxyapatite complex, which also supplies natural bone growth factors. The formula is enriched with vitamin C for bone matrix formation, and vitamins D and K for matrix calcification. In addition, it includes essential minerals like magnesium, potassium, zinc, copper, manganese, and boron. This new generation bone support supplement is based on the latest understanding of bone as a dynamic and complex tissue. With Doctor's Best Bone Maker Complex, you can support your bone health, muscular health, skeletal health, and vascular health.
Best Naturals Calcium Magnesium Zinc with Vitamin D3, 300 Tablets
Best Naturals Calcium Magnesium Zinc with Vitamin D3 Tablets are a premium formula of essential minerals and vitamins that promote bone strength and overall health. Calcium, magnesium, and zinc are essential minerals for bone health, while vitamin D3 helps the body absorb these nutrients. The product is 3rd party lab tested and manufactured in accordance with Good Manufacturing Practices (GMP), ensuring high quality standards. The tablets are made in the USA and come with 300 tablets per bottle.
Plant-Based Calcium 500mg by SUPPLEMENTS STUDIO
The Vegan Calcium by SUPPLEMENTS STUDIO offers a unique plant-based formula made from sustainably harvested red marine algae. This supplement not only provides essential calcium and magnesium but also includes over 13 vital minerals for better absorption and digestion. It features a 7-in-1 bone health complex that combines magnesium and vitamin D3 to enhance calcium absorption. Additionally, zinc helps your body utilize magnesium effectively, while vitamin K2 directs calcium to strengthen your bones. With turmeric for joint support and BioPerine to boost nutrient effectiveness, this supplement is designed to promote your overall bone and joint health.
Mason Natural Calcium Magnesium & Zinc
Mason Calcium Magnesium Zinc is an easy-to-swallow supplement designed for adults over 18. You only need to take one tablet daily, ideally with a meal, to support your bone health. This triple-action formula provides essential nutrients, including 334 mg of calcium, 134 mg of magnesium, and 5 mg of zinc, promoting strong bones and a healthy immune system. With clean ingredients and no added sugars or artificial additives, you can feel confident about what you're putting into your body. Plus, Mason Natural has a trusted reputation, having delivered quality supplements for over 50 years.
Pure Nutrition Ultra Calcium Citrate 1000mg
The Pure Nutrition Calcium Supplement offers a powerful blend of essential nutrients designed to support your bone and overall health. Each tablet delivers 1000 mg of Calcium Citrate Malate, which is known for its high absorption rate, ensuring your body gets the calcium it needs. It also contains Vitamin D3, which enhances calcium absorption, and Magnesium, crucial for muscle function. Additionally, Moringa is included for its rich nutrient profile, promoting overall wellbeing. By taking one tablet daily, you can help maintain strong bones and support heart health efficiently.
New Chapter Calcium Supplement
New Chapter Bone Strength Tiny Tabs is a 3-in-1 calcium supplement that supports bone health, cardiovascular health, and joint support. It is expertly formulated with Vitamin D3 for better absorption, Vitamin K2 to direct calcium to the bones, magnesium, and 70 whole-food trace minerals. This supplement protects against bone loss, promotes bone density and joint flexibility. The miniature calcium tablets are easy to swallow and provide a slow and steady release. New Chapter Bone Strength Tiny Tabs is USDA Organic, Non-GMO Project Verified, 100% Vegetarian, Kosher, and Certified Gluten-Free by NSF. With its comprehensive formulation and convenient miniature size, this calcium supplement is an excellent choice for maintaining healthy bones and overall well-being.
Pure Naturals Calcium Magnesium Zinc D3 Supplement
If you are looking for a supplement to support your bone health, Pure Naturals Calcium Magnesium Zinc D3 is a great option. With 1000mg of calcium, 400mg of magnesium, 25mg of zinc, and 600 IU of Vitamin D3 in every serving, this supplement is designed to satisfy your daily nutritional needs. The non-GMO and gluten-free formula ensures that you get the purest and most effective form of this product. The supplement is also third-party tested and manufactured in accordance with GMP standards to guarantee quality. The 300 tablet count in each bottle provides 100 servings, making it a cost-effective choice for long-term use.
Nature's Way Alive! Calcium Supplement
Nature's Way Calcium Max is designed to support your bone health with a potent blend of nutrients. Each serving provides 1,200 mg of calcium, along with vitamin D3, K2, and magnesium, all essential for maintaining strong bones. The calcium is sourced from plants, making it a great option for those looking for a natural supplement. You only need to take four tablets daily, preferably with meals, making it easy to incorporate into your routine. Plus, it's vegetarian and free from common allergens, so you can feel good about what you're taking.
Frequently Asked Questions (FAQs)
1. What is the best natural form of calcium?
The best sources of calcium are dairy products, including milk, yogurt, cheese, and calcium-fortified beverages such as almond and soy milk. Calcium is also found in dark-green leafy vegetables, dried peas and beans, fish with bones, and calcium-fortified juices and cereals.
2. What is the best form of calcium to take?
Calcium carbonate supplements tends to be the best value, because they contain the highest amount of elemental calcium (about 40% by weight). Because calcium carbonate requires stomach acid for absorption, it's best to take this product with food.
3. Which type of calcium is best absorbed?
Calcium citrate is the most easily absorbed and does not require stomach acid for absorption, but it is expensive and does not contain much elemental calcium. Women should meet their calcium needs through both their diet and supplements.
During our natural calcium supplement research, we found 24 natural calcium supplement products and shortlisted 10 quality products. We collected and analyzed 102,873 customer reviews through our big data system to write the natural calcium supplements list. We found that most customers choose natural calcium supplements with an average price of $20.90.
The natural calcium supplements are available for purchase. We have researched hundreds of brands and picked the top brands of natural calcium supplements, including NATURELO, New Chapter, Doctor's BEST, Best Naturals, SUPPLEMENTS STUDIO. The seller of top 1 product has received honest feedback from 2,557 consumers with an average rating of 5.0.

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