NUTRITION

5 Best Calcium Supplements for Bone Health of 2024, Tested

By Thomas FosterUpdated on Dec 4, 2024

Maintaining optimal bone health is crucial, and selecting the right calcium supplement can make a significant difference. Here are some top-rated options to consider:

Garden of Life mykind Organic Plant Calcium

Garden of Life mykind Organic Plant Calcium image

4.9

  • Sourced from organic algae, providing 800 mg of calcium per serving
  • Includes 1,000 IU of vitamin D3 and 80 mcg of vitamin K2 for enhanced bone support
  • Certified USDA Organic, Non-GMO Project Verified, and gluten-free
  • Free from synthetic binders and fillers
  • Recommended dosage: 3 tablets daily with food

On Amazon

Why We Recommend It

This plant-based supplement offers a comprehensive approach to bone health with added vitamins D3 and K2.

Pros & Cons

Organic and non-GMO

Includes vitamins D3 and K2

Plant-based calcium source

Requires taking three tablets daily

Citracal Slow Release 1200

Citracal Slow Release 1200 image

4.8

  • Combines 1,200 mg of calcium citrate and carbonate per serving
  • Includes 1,000 IU of vitamin D3 to aid calcium absorption
  • Slow-release formula designed for efficient absorption
  • Gentle on the stomach
  • Recommended dosage: 2 caplets once daily with food

On Amazon

Why We Recommend It

Citracal's slow-release technology ensures gradual calcium intake, enhancing absorption and minimizing digestive discomfort.

Pros & Cons

Slow-release formula

Includes vitamin D3

Gentle on the stomach

Caplets may be large for some individuals

Nature Made Calcium 600 mg with Vitamin D3

Nature Made Calcium 600 mg with Vitamin D3 image

4.7

  • Provides 600 mg of calcium and 10 mcg (400 IU) of vitamin D3 per serving
  • Supports bone health and calcium absorption
  • Gluten-free with no synthetic dyes or artificial flavors
  • USP verified for quality and potency
  • Recommended dosage: 1 tablet up to twice daily with meals

On Amazon

Why We Recommend It

Nature Made offers a balanced dose of calcium and vitamin D3, essential for bone strength and effective calcium absorption.

Pros & Cons

USP verified

No artificial additives

Supports bone health

Tablet size may be large for some

New Chapter Bone Strength Take Care

New Chapter Bone Strength Take Care image

4.6

  • Delivers 770 mg of plant-sourced calcium from algae per serving
  • Enhanced with vitamins D3, K2, and magnesium for comprehensive bone support
  • Non-GMO Project Verified, gluten-free, and kosher
  • Slim tablets for easy swallowing
  • Recommended dosage: 3 tablets daily with food

On Amazon

Why We Recommend It

This supplement provides a holistic approach to bone health with its blend of essential vitamins and minerals.

Pros & Cons

Plant-sourced calcium

Includes vitamins D3, K2, and magnesium

Easy-to-swallow tablets

Requires multiple tablets per day

Kirkland Signature Calcium 600 mg with Vitamin D3

Kirkland Signature Calcium 600 mg with Vitamin D3 image

4.6

  • Each tablet contains 600 mg of calcium and 10 mcg (400 IU) of vitamin D3
  • Supports bone health and muscle function
  • Gluten-free with no artificial colors or flavors
  • USP verified for quality and potency
  • Recommended dosage: 1 tablet up to twice daily with meals

On Amazon

Why We Recommend It

Kirkland Signature offers a cost-effective option without compromising on quality, ideal for daily bone support.

Pros & Cons

USP verified

No artificial additives

Affordable

Tablet size may be large for some individuals


Selecting the appropriate calcium supplement is vital for maintaining bone health. Consider factors such as dosage, additional nutrients, and personal dietary preferences to make an informed choice.

What Are Calcium Supplements, and Why Are They Important for Bone Health?

Calcium supplements are dietary products designed to help people meet their daily calcium requirements, especially when dietary intake falls short. Calcium is a crucial mineral for building and maintaining strong bones and teeth. It also supports muscle function, nerve signaling, and blood clotting.


For bone health, calcium is particularly important as it helps prevent bone loss and reduces the risk of osteoporosis, a condition that weakens bones and makes them more prone to fractures. Supplements are often recommended for individuals who are at risk of calcium deficiency, such as older adults, postmenopausal women, and those with dietary restrictions.


Taking calcium supplements, alongside vitamin D for better absorption, ensures your bones stay strong and healthy over time. Always consult a healthcare provider to determine the right dosage for your needs.

What Are the Benefits of Calcium Supplements for Bone Health?

Calcium supplements are a valuable tool for maintaining and improving bone health, especially for those who struggle to meet their calcium needs through diet. Here are the key benefits:

  1. Prevents Bone Loss: Calcium helps maintain bone density and prevents conditions like osteoporosis, which weakens bones and increases the risk of fractures.
  2. Supports Bone Growth: In younger individuals, calcium is essential for building strong bones during growth phases.
  3. Reduces Fracture Risk: Regular calcium intake strengthens bones, reducing the likelihood of fractures, especially in older adults.
  4. Improves Overall Skeletal Health: Calcium supplements provide the necessary support for skeletal structure, ensuring bones remain strong and healthy throughout life.
  5. Fills Dietary Gaps: For individuals with limited access to calcium-rich foods or dietary restrictions, supplements ensure adequate calcium levels.

When paired with vitamin D, calcium supplements are even more effective at supporting bone health. Consult your healthcare provider to find the right supplement and dosage for your needs.

What Is the Best Time to Take Calcium Supplements?

The best time to take calcium supplements depends on the type of calcium and your daily routine. Here are some tips to optimize absorption:

  1. Calcium Citrate: This type of calcium can be taken with or without food, making it a convenient option for any time of day.
  2. Calcium Carbonate: Since it requires stomach acid for proper absorption, calcium carbonate should be taken with a meal.
  3. Divide Doses: If your daily calcium requirement exceeds 500-600 mg, split it into smaller doses throughout the day to maximize absorption.
  4. Avoid Taking with Certain Supplements: Avoid taking calcium with iron or zinc supplements, as they may interfere with absorption. Space them a few hours apart.
  5. Pair with Vitamin D: Taking calcium with vitamin D enhances its absorption, so consider a supplement that combines the two or take them together.

Morning or afternoon is typically ideal for taking calcium, depending on the type, but consistency is key for reaping the benefits. Always follow your healthcare provider’s recommendations for dosage and timing.

What’s the Difference Between Calcium Citrate and Calcium Carbonate?

Calcium citrate and calcium carbonate are two of the most common forms of calcium supplements, but they differ in how they are absorbed and used. Here’s a quick comparison:

  1. Absorption
  1. Calcium Content
  1. Suitability

Both types are effective for supporting bone health, so the choice depends on your individual needs and tolerance. Always consult a healthcare provider to determine which is best for you.

How Long Does It Take for Calcium Supplements to Improve Bone Health?

The time it takes for calcium supplements to improve bone health depends on your age, bone density, and overall health. Generally:

  1. Preventative Benefits: Calcium supplements help maintain bone health over the long term, especially when combined with vitamin D, a balanced diet, and regular exercise.
  2. Bone Density Improvements: For individuals with low bone density or osteoporosis, noticeable changes may take several months to years. Bone remodeling is a slow process, and consistent calcium intake supports gradual improvements.
  3. Consistency Matters: Taking the recommended dose daily ensures your body has a steady supply of calcium to support bone repair and strength.

Calcium supplements are a long-term investment in bone health. While you may not see immediate results, regular use helps reduce the risk of fractures and supports healthier bones over time. Always follow your healthcare provider’s recommendations for dosage and duration.

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