Our Picks: Best Calcium Supplements for Bones & Joints in 2025

What other nutrients are used to support bone, muscle, and joint health?

Top Calcium Supplements in 2025

Key Ingredients

Try To Avoid

Important Criteria

Calcium

Vitamin D

Vitamin K

Vitamin C

Turmeric

Zinc

No Less Than 1000 mg Calcium

90D Money-Back Guarantee

Third-Party Tested

Bone Restore by Life Extension

AlgaeCal Plus by AlgaeCal

Calcium 500 mg by Nature Made

Organic Plant Calcium by Garden of Life mykind Organics

Our Choice

by Primal Harvest[1]

• 1300 mg calcium
• Vitamins, minerals, and herbal extracts
• Certified safety and purity testing
• 90-day money-back guarantee
• Made in the USA with globally sourced ingredients

3. AlgaeCal Plus

by AlgaeCal

PROS

• Contains vitamin C, D, and K 
• Includes magnesium

CONS

• Price
• Less than 1000 mg of calcium

BOTTOM LINE

AlgeaCal Plus is a calcium supplement made in the USA with algae-derived calcium and magnesium. It also includes the vitamins C, D, and K, as well as boron in its formula that comes in a 2-capsule per day serving. However, you may want to note it only contains 360 mg of calcium which is a lower amount than some of the other products featured here. 

by Nature Made

PROS

• Made in the USA 
• Contains calcium and vitamin D3
• 1 tablet 1-2x daily

CONS

• No magnesium, zinc, or vitamin K
• Less than 1000 mg of calcium
• 30-day return policy

BOTTOM LINE

Calcium by Nature Made combines 600 mg of calcium with 10 mcg of vitamin D3. Adults are recommended to take 1 tablet 1-2 times per day, a serving size some may find convenient. However, the formula doesn't contain other nutrients like magnesium, zinc, and vitamin K. Additionally, you may want to note that the brand only offers a 30-day period to return the product. 

5. Organic Plant Calcium 

by Garden of Life mykind Organics

PROS

• Contains calcium, magnesium, vitamin D, and vitamin K
• Includes an 'Organic Plant Calcium Blend'
• Third-party tested

CONS

• No vitamin C
• No zinc
• No 'Subscribe & Save' option

BOTTOM LINE

Organic Plant Calcium by Garden of Life mykind Organics is formulated with 800 mg of calcium as well as magnesium, vitamin D, and vitamin K. It also contains fruit and vegetable extracts in an ‘Organic Plant Calcium Blend’ that includes broccoli, spinach, garlic, red cabbage, and berries amongst others. Some may want to note that this formula is made with less calcium than some of the other products featured here and also doesn’t include vitamin C or zinc. Another factor to consider is that the brand doesn't offer a subscription service. 

2. Bone Restore 

by Life Extension

PROS

• Contains calcium, magnesium, manganese, and zinc as well as vitamins K and D 
• Plant-derived capsules
• Certified safety and purity testing
• Made in the USA

CONS

• Less than 1000 mg of calcium
• No vitamin C

BOTTOM LINE

Bone Restore by Life Extension is formulated with 700 mg of calcium, minerals like magnesium, boron, and zinc, as well as vitamins K and D. While this formula does provide a wide range of nutrients, it contains lower amounts of some of them than some other formulations. It also doesn’t contain vitamin C or some extracts like turmeric. 

• With 1300 mg calcium
• Vitamins C, D, K, and minerals magnesium, zinc, potassium, and more.
• With herbal extracts and adaptogens like turmeric
• Easy-to-take capsules
• Third-party tested
• Made in the USA with globally sourced ingredients

PROS

CONS

• Only available online
• Sometimes runs out of stock

Primal Bone Health by Primal Harvest features a diverse blend of ingredients. This premium formula combines 1300 mg of calcium with the minerals magnesium, zinc, boron, manganese, and potassium as well as the vitamins C, D, and K. But it doesn’t stop there. Primal Bone Health goes one step further by including herbal extracts such as turmeric, black pepper extract, Cissus quadrangularis, Coleus Forskohlii, and the amino acid L-carnitine to offer well-rounded support for bones, muscles, and joints.*

This unique calcium complex comes in capsules that are convenient to add to any supplement routine. It is independently third-party lab tested in the USA.

Primal Bone Health offers great value and quality at a reasonable price. 

Good to know: Primal Harvest has a convenient subscription service that comes with free shipping and a 20% discount on all products. They also offer a 90-day money-back guarantee for all of their products.

BOTTOM LINE

Everyone’s needs are different, but some people who may benefit from taking a calcium supplement includes anyone who:

• Struggles to consume enough calcium through diet alone*
• Wants to give their bones and joints additional support*
• Finds it hard to follow a well-balanced diet*
• Leads a busy, hectic lifestyle and pays less attention to nutrition*
• Is not a fan of calcium-rich foods*

Who might benefit from taking a calcium supplement?

4. Calcium

• Feeling satisfied with their daily performance* 

1 - 2 Months: 

• Being able to participate in physical activities*
• Feeling like they could "bounce back" after sports*

• Experiencing daily energy*
• Feeling generally fit*
• Feeling good overall*

Note: Individual results may vary. The benefits stated are based on personal experiences and subjective feedback and may vary from person to person.

3 - 6 Months: 

6+ Months: 

Plant Extracts

Magnesium

Subscription Service

What is calcium?

Calcium is an important mineral that is used by the body to build and maintain healthy bones. In fact, over 99% of the calcium in your body is stored in the teeth and bones. [1] 

How might some people benefit from a calcium supplement? 

Everyone has individual needs and the experience of making changes in your wellness routine will vary from person to person. Here are some examples of how including more daily calcium may look for different people*:

AT A GLANCE

• AMOUNT OF CALCIUM: 1300 mg
• OTHER INGREDIENTS: Vitamins D, C, and K, magnesium, zinc, boron, turmeric, cissus quadrangularis, L-carnitine, coleus forskohlii extract
• FORM: Capsule
• SERVING SIZE: 4 capsules
• SERVINGS PER CONTAINER: 30

AT A GLANCE

• AMOUNT OF CALCIUM: 700 mg
• OTHER INGREDIENTS: Vitamins D3 and K2, magnesium, zinc, boron
• FORM: Capsule
• SERVING SIZE: 4 capsules
• SERVINGS PER CONTAINER: 30

AT A GLANCE

• AMOUNT OF CALCIUM: 360 mg
• OTHER INGREDIENTS: Vitamins D and K, magnesium, boron
• FORM: Capsule
• SERVING SIZE: 2 capsules
• SERVINGS PER CONTAINER: 30

AT A GLANCE

• AMOUNT OF CALCIUM: 600 mg
• OTHER INGREDIENTS: Vitamins D 
• FORM: Tablet
• SERVING SIZE: 1 Tablet
• SERVINGS PER CONTAINER: 60 - 120

AT A GLANCE

• AMOUNT OF CALCIUM:  800 mg
• OTHER INGREDIENTS: Vitamins D and K, magnesium, plant extracts
• FORM: Tablet
• SERVING SIZE: 3 tablets
• SERVINGS PER CONTAINER: 30

Note: We try to update product information as often as we can. Please visit product websites for more information.

If the body is not supplied with sufficient amounts of calcium, it begins to use the calcium that is stored in the skeleton. Ultimately, this may lead to weaker bones. 

Despite all its benefits, it was estimated that approximately 32% of individuals in the US get less than the daily recommended amount of calcium. [2]

Calcium is needed by the body for many key bodily functions including:

• Forming bones
• Maintaining bone health*
• Maintaining dental health*

Why is calcium important?

• Muscle contraction*
• Supporting heart rhythms*
• Maintaining nerve functions*

Note: These statements are not intended to diagnose, treat, cure, or prevent any disease or condition, nor are they intended to be substitutes for professional medical health advice. Always consult your physician or other qualified healthcare provider for accurate advice, diagnosis, and treatment plan.

What to try to avoid in a bone support supplement:

All bone support supplements are NOT created equal. Choosing the best possible bone support calcium formula all comes down to knowing what to look for and what to try to avoid so that you never waste your time or hard-earned money. 

1. Ross AC;Taylor CL;Yaktine AL;Del Valle HB; “Dietary Reference Intakes for Calcium and Vitamin D.” National Center for Biotechnology Information, U.S. National Library of Medicine, https://pubmed.ncbi.nlm.nih.gov/21796828/. 

2. “Office of Dietary Supplements - Calcium.” NIH Office of Dietary Supplements, U.S. Department of Health and Human Services, https://ods.od.nih.gov/factsheets/Calcium-HealthProfessional/. 

3. Rodríguez-Olleros Rodríguez C, Díaz Curiel M. Vitamin K and Bone Health: A Review on the Effects of Vitamin K Deficiency and Supplementation.... J Osteoporos. 2019;2019:2069176. Published 2019 Dec 31. doi:10.1155/2019/2069176/. 

4. Chen, Li-Ru, et al. “Nutritional Support and Physical Modalities…Current Opinion.” Nutrients, U.S. National Library of Medicine, 20 Nov. 2019, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950804/. 

5. Qu X;Yang H;Yu Z;Jia B;Qiao H;Zheng Y;Dai K; “Serum Zinc Levels and Multiple Health Outcomes: Implications for Zinc-Based Biomaterials.” Bioactive Materials, U.S. National Library of Medicine, https://pubmed.ncbi.nlm.nih.gov/32258830/. 

6. P;, Zofková I;Nemcikova P;Matucha. “Trace Elements and Bone Health.” Clinical Chemistry and Laboratory Medicine, U.S. National Library of Medicine, https://pubmed.ncbi.nlm.nih.gov/23509220/.  

To see a list of our other references, please click here. 

CITATIONS

DISCLAIMER: This scientific research is for informational purposes only. The results reported may not necessarily occur in all individuals. Primal Harvest provides this information as a service but does not endorse it. This information should not be read to recommend or endorse any specific products.

• Vitamin C: This vitamin plays a role in supporting calcium absorption. A well-balanced diet should be sure to include sufficient amounts of this vitamin to support the maximum absorption of calcium.* 
• Magnesium: Over 60% of magnesium is found in bone tissue. The body also uses this essential mineral to create protein and support optimal exercise performance and recovery.*
• Vitamin K: Some research suggests this vitamin may help to protect the bones against wear and tear, however, more research needs to be done to determine the full benefits of this vitamin.* [3] 
• Boron: This trace element is used by the body to support bone health. It may also be beneficial for the absorption of other minerals the body utilizes for bone health such as calcium, magnesium, and vitamin D.*
• Vitamin D: Also known as the sunshine vitamin, vitamin D supports calcium absorption and studies show that it also plays a role in bone health. This is why it’s often consumed with calcium and other bone-supporting nutrients.* [4]
• Zinc: This mineral has been linked with higher bone density in several studies, making it a key part of well-rounded bone support.* [5]
• Manganese: Found in seeds and nuts, researchers suggest that maintaining sufficient amounts of this trace mineral can help support bone density.* [6]

Top Calcium Supplements for Bones & Joints in 2025

Here are the top things to try to avoid when shopping for a high-quality calcium supplement:

• Unclear Labels: A quality bone support supplement should clearly list exactly what’s included in the formula. Avoid products lacking transparency that don’t list all of the specific ingredients included in the formula.
• Missing Safety Testing & Certifications: Choose a supplement that has been independently third-party lab tested and manufactured in the USA. These precautions will guarantee that the product is top quality and free from unwanted extras, such as contaminants, traces of heavy metals, or pesticides.
• False or Misleading Claims: Beware of any supplements that claim their product treats or cures any specific disease or ailment, or promises miraculous, unrealistic, or misleading results. Always speak to your doctor before starting a new supplement routine.
• Suspiciously Cheap Products: When it comes to your health, this is definitely not an area to test out suspiciously cheap products. There are plentiful options to choose from that are high value and still affordable. In this case, you do get what you pay for!