Best Strontium Supplements for Bone Health (2026)
Strontium is a naturally occurring trace mineral that plays a unique role in bone metabolism by stimulating bone-building osteoblasts while slowing bone-resorbing osteoclasts. Widely studied in Europe and increasingly popular in the US, strontium citrate has become a go-to supplement for those seeking to support bone density alongside calcium and vitamin D. Here are the best strontium supplements currently available.
Quick Comparison
| Product | Strontium Dose | Form | Best For | Rating |
|---|---|---|---|---|
| Vital Nutrients Strontium Citrate | 227mg | Capsules | Best Overall | 9.5/10 |
| AlgaeCal Strontium Boost | 680mg | Capsules | Best Clinically Studied | 9.4/10 |
| Pure Encapsulations Strontium Citrate | 227mg | Capsules | Best Premium | 9.3/10 |
| Terry Naturally Strontium | 680mg | Capsules | Best Full Dose | 9.1/10 |
| Life Extension Strontium Caps | 750mg | Capsules | Most Potent | 9.0/10 |
| Advanced Bionutritionals Ultimate Bone Support | Strontium + Multi-Mineral | Capsules | Best Multi-Nutrient | 8.9/10 |
| AOR Strontium Support II | 341mg | Capsules | Best Mid-Range Dose | 8.8/10 |
1. Vital Nutrients Strontium Citrate – Best Overall
- Healthy Bone and Teeth Support: Vital Nutrients Strontium Citrate provides 227mg strontium, which offers similar benefits to calcium for bone and teeth health*
- Combine with Osteo Nutrients or Osteo Nutrients II: These complementary formulas work in synergy with Strontium Citrate, since strontium is most beneficial when combined with adequate calcium plus vitamins D3 and K2
- Clean Vegan Formula. Hypoallergenic and Non-GMO. Made without artificial fillers, coatings, binders, or colors.
- Quality You Can Rely on: Our rigorous quality assurance program includes third-party independent laboratory testing of raw ingredients and finished products for purity and potency to ensure what’s on the label is in the bottle.
- Trusted by Healthcare Practitioners Worldwide: Vital Nutrients was founded 30 years ago by practitioners who set out to make a positive and lasting impact on the health of people and planet. Today, our premium line of clinically relevant, pure, clean-label formulas is trusted by healthcare practitioners and health-conscious consumers worldwide
Vital Nutrients delivers a practitioner-trusted strontium citrate formula manufactured in their own NSF-certified facility, setting the gold standard for purity and potency.
Each capsule provides 227mg of strontium as strontium citrate, allowing flexible dosing from one to three capsules daily based on individual needs. Vital Nutrients is one of the few supplement companies with their own in-house NSF-certified manufacturing facility in Middletown, CT, and every batch undergoes third-party independent laboratory testing for both raw ingredients and finished products. The formula is vegan, gluten-free, dairy-free, and soy-free.
- Pros:
- NSF-certified facility with third-party lab testing on every batch
- Trusted by healthcare practitioners worldwide for over 30 years
- Flexible dosing with 227mg per capsule
- Cons:
- Requires multiple capsules for a full clinical dose
- Higher price per bottle than mass-market options
Best for: Those who want practitioner-grade quality with flexible dosing options
2. AlgaeCal Strontium Boost – Best Clinically Studied
- Bone Health Supplement : AlgaeCal has all the nutrients your bones need. And those nutrients will work from the very first day you take them. But bones grow slowly. That's why people take strontium citrate 680 mg capsules because it's known as a bone stimulant.
- Clinically Supported: Backed by 20+ years of research and 3 human clinical studies, Strontium Boost increases bone density naturally — with no adverse side effects reported in study participants. All participants in studies with AlgaeCal saw increases in their bone density. Participants who took Strontium Boost alongside AlgaeCal supplements saw triple bone density increases. It's a pure natural supplement that in combination with a plant based calcium supplement can help in the healing of a bone fracture.
- Natural & Organic : Strontium citrate is found in natural soil. In fact, it's already in a lot of the vegetables you eat. And when combined with citrate you get strontium citrate It's a real bone boost!
- Bone Strength Supplement : Strontium Boost slows down the cells that eat-away at our old bone, and speeds-up the cells that build healthy new bone – resulting in stronger bones in less time. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
- Vegetarian Capsules: Our vegetarian capsules are non-GMO and free from dairy, soy, and gluten. We manufacture our supplements in a cGMP certified FDA inspected facility here in the USA.
AlgaeCal Strontium Boost is the only strontium supplement backed by three human clinical studies demonstrating increased bone density.
Each serving of two capsules delivers 680mg of strontium citrate, the standard clinical dose used in research. The product is backed by over 20 years of research and three human clinical studies showing bone density increases when taken alongside AlgaeCal Plus calcium. Participants in the studies experienced up to triple bone density increases compared to calcium alone, with no adverse side effects reported in a 7-year study. The capsules are vegetarian, non-GMO, and free from dairy, soy, and gluten, manufactured in a cGMP-certified, FDA-inspected facility in the USA. If you’re building a comprehensive bone health routine, consider pairing strontium with the supplements in our bone health guide.
- Pros:
- Backed by three human clinical studies on bone density
- Full clinical dose of 680mg strontium citrate per serving
- 7-year study showed no adverse side effects
- Cons:
- Premium pricing reflects clinical backing
- Best results require pairing with AlgaeCal Plus calcium supplement
Best for: Those who want the most clinically validated strontium supplement available
3. Pure Encapsulations Strontium Citrate – Best Premium
- Supports Healthy Bones: Strontium supports osteoblast activity while maintaining healthy osteoclast activity to support healthy bones.*
- Vertebrae Health: Strontium may support healthy vertebrae integrity and composition.*
- Bone Support: Studies have shown that strontium supplementation also supports healthy hip bones.*
- Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity.
- Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.
Pure Encapsulations is renowned for their hypoallergenic formulations, and their strontium citrate delivers clean, effective bone support without unnecessary additives.
Each capsule provides 227mg of strontium as strontium citrate, with a recommended dose of one to three capsules daily. Pure Encapsulations is known for using only premium ingredients sourced from trusted suppliers, with every product carefully manufactured and tested to verify potency and purity. The formula supports osteoblast activity while maintaining healthy osteoclast function, and research suggests it supports healthy vertebrae integrity and hip bone health. Available in both 90-count and 180-count bottles.
- Pros:
- Hypoallergenic formula free from common allergens and fillers
- Premium ingredients from trusted suppliers
- Available in both 90 and 180-count sizes
- Cons:
- Among the most expensive strontium options per serving
- Multiple capsules needed for full clinical dose
Best for: Those with sensitivities who need a clean, hypoallergenic strontium formula
4. Terry Naturally Strontium – Best Full Dose
- Mineral Supplement for Bone Health: Strontium is a vital mineral that supports bone formation and healthy bone density; strontium citrate is known for superior absorption, supporting your bone health
- Bone Support Partner: This supplement is designed to complement Silica-2 and other bone supplements for a well-rounded bone support regimen; take this supplement separate from calcium products to minimize competition for absorption
- Daily Strontium Support: For bone health support, take 2 capsules daily, or as recommended by your healthcare practitioner; take apart from calcium supplements or foods with high calcium content
- Allergen-Friendly Dietary Supplement: This strontium supplement contains no sugar, salt, yeast, wheat, gluten, corn, soy, dairy products, artificial coloring, artificial flavoring, or artificial preservatives
- Your Health & Our Passion: Our supplements combine the best of science and nature, formulated to support your health and inspire you to make lasting changes to your health
Terry Naturally delivers a full 680mg clinical dose of strontium citrate in just two vegan capsules, designed as a convenient bone health cornerstone.
This formula uses strontium citrate specifically for superior absorption. The product is free from sugar, salt, yeast, wheat, gluten, corn, soy, dairy, artificial coloring, flavoring, and preservatives. Terry Naturally recommends taking this supplement apart from calcium products to minimize competition for absorption, which is standard practice for strontium supplementation. The product is designed to complement other bone support supplements like their Silica-2 formula.
- Pros:
- Full 680mg clinical dose in just two capsules
- Vegan capsules with no artificial additives
- Strontium citrate form for superior absorption
- Cons:
- 60-capsule bottle provides only a 30-day supply
- Should be taken separately from calcium supplements
Best for: Those who want a convenient full-dose strontium supplement in minimal capsules
5. Life Extension Strontium Caps – Most Potent
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Life Extension offers the highest strontium dose on this list at 750mg per serving, ideal for those seeking maximum bone density support under professional guidance.
Each serving delivers 750mg of elemental strontium, exceeding the standard 680mg clinical dose found in most competitors. Life Extension is known for science-driven formulations based on cutting-edge research. The formula is vegetarian, gluten-free, and non-GMO. With 90 capsules per bottle and a one-capsule-per-day serving, this provides a three-month supply at an excellent value for a premium brand.
- Pros:
- Highest potency at 750mg per serving
- Three-month supply with 90 capsules
- Science-driven brand with rigorous quality standards
- Cons:
- Higher dose may not be appropriate for all individuals
- Single-ingredient formula without additional bone-support nutrients
Best for: Those under professional guidance who want maximum strontium potency
6. Advanced Bionutritionals Ultimate Bone Support – Best Multi-Nutrient
- BONE SUPPORT FORMULA: Ultimate Bone Support Supplements support healthy bone and collagen growth in women. This formula gives you a mix of nine bone supporting nutrients including strontium, silica, and vitamin K2.
- SILICA: Studies suggest that silica helps support the production of osteoblasts, the cells that build bones. This mineral was designed to help support bone growth and collagen growth in men and women.
- VITAMIN K2 & D3: Vitamin K2 which supports the production of two proteins in your body called osteocalcin and matrix-gla. These proteins help deposit calcium to your bones. Vitamin D3 or cholecalciferol, a highly absorbable form of vitamin D. Study after study demonstrates the important role vitamin D plays in bone health.
- L-LYSINE & ADDITIONAL MINERALS: L-lysine was added to support the collagen in your bones. Collagen is like "glue" that holds your bones together. Additional minerals strontium, boron, manganese, copper, and zinc to support your bones too.
- QUALITY INGREDIENTS: Advanced Bionutritionals is a cutting-edge line of nutraceuticals and made in the USA. Our formula is vegan and does not contain any gluten, wheat, corn, nuts, seeds, eggs, soy, or dairy. And it does not contain any GMOs or preservatives.
This comprehensive formula combines strontium with silica, vitamins, and minerals for a multi-angle approach to bone health that goes beyond standalone strontium.
Ultimate Bone Support provides strontium alongside a full spectrum of bone-supporting nutrients including silica, vitamin D, vitamin K, and additional trace minerals. This eliminates the need to take separate supplements for each nutrient, streamlining a bone health regimen into a single product. The formula is designed by a team of physicians and is particularly popular among those looking to support bone density as part of a comprehensive approach. For additional joint and bone support, see our guide to calcium citrate supplements.
- Pros:
- Comprehensive multi-nutrient bone support formula
- Combines strontium with silica, vitamin D, K, and trace minerals
- Simplifies supplementation into one product
- Cons:
- Lower strontium dose than standalone products
- Multi-capsule daily serving required
Best for: Those who want an all-in-one bone support formula with strontium included
7. AOR Strontium Support II – Best Mid-Range Dose
- HELPS BONE BUILDING: Strontium Support II is designed to support bone growth and a healthy skeletal system.
- TEAM EFFORT: Bone wears down over time. Strontium helps trigger the body to more effectively use calcium to support bone growth.
- BACK TO NORMAL: Bone health is a balancing act between growth and loss. Our formula helps improve growth to begin the rebuilding process.
- HELPS TO GROW: Strontium Support II is formulated for easy absorption.
- NATURAL QUALITY: Every formula we deliver is created with quality research, using premium ingredients sourced from trusted suppliers. They are inspired by nature to be safe and effective.
AOR pioneered supplemental strontium citrate in 2002 and continues to offer one of the most researched and trusted formulations on the market.
AOR introduced the world’s first supplemental strontium citrate back in 2002, giving them over two decades of experience with this mineral. The formula provides an effective dose in a convenient one to two capsule-a-day format, designed for easy absorption. AOR recommends taking it on an empty stomach at least two hours before or after consuming food or calcium, since these can significantly reduce strontium absorption. The product is vegan and non-GMO.
- Pros:
- Pioneer of supplemental strontium citrate since 2002
- Flexible one to two capsule daily dosing
- Vegan and non-GMO formula
- Cons:
- Must be taken on an empty stomach away from calcium
- Smaller brand with less availability than major competitors
Best for: Those who value the expertise of the brand that first brought strontium citrate to market
8. Best Naturals Strontium 680mg – Best Budget Pick
- 3rd Party Lab Tested for Purity & Quality.
- 680 mg of Strontium per Serving - 45 Servings per Bottle.
- Non-GMO & Gluten-Free.
- Proudly Made in USA, GMP Compliant, FDA Registered Facility.
- No Artificial Color, Flavor, or Sweetener, No Preservatives, No Sugar, No Milk, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish. Sodium Free.
Best Naturals delivers the full 680mg clinical dose of strontium at one of the lowest price points in the category, making bone support accessible to everyone.
Each serving provides 680mg of strontium in 90 capsules, providing a 45-day supply at the full clinical dose. The product is manufactured in a GMP-compliant facility and is proudly made in the USA. The straightforward formulation focuses purely on strontium without unnecessary additives or fillers, keeping costs low without sacrificing quality.
- Pros:
- Full 680mg clinical dose at a budget-friendly price
- Made in the USA in a GMP-compliant facility
- Clean, simple formula without fillers
- Cons:
- Less brand recognition than premium competitors
- 90-capsule bottle runs out faster at full dose
Best for: Budget-conscious shoppers who want the full clinical strontium dose without premium pricing
9. Onnit Stron Bone – Best with Joint Support
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Onnit’s Stron Bone goes beyond basic strontium by adding glucosamine, MSM, hyaluronic acid, and a full spectrum of bone-supporting vitamins and minerals.
This comprehensive formula delivers 680mg of strontium alongside vitamin K2, vitamin D3, vitamin E, magnesium, potassium, copper, manganese, boron, N-acetyl glucosamine, MSM, hyaluronic acid, and BioPerine for enhanced absorption. The inclusion of joint-support ingredients makes this a dual-purpose supplement for both bone density and connective tissue health. A study cited by Onnit demonstrated a 41% decrease in fracture risk with 680mg strontium, and a 30% increase in bone density when combined with calcium.
- Pros:
- Comprehensive bone AND joint support in one formula
- Includes vitamin K2, D3, and BioPerine for absorption
- Backed by clinical research on fracture risk reduction
- Cons:
- Requires 3 tablets per day
- Higher price point due to multi-nutrient formula
Best for: Those who want combined bone density and joint health support in a single product
How to Choose the Best Strontium Supplement
The most important factor in selecting a strontium supplement is the form. Strontium citrate is the preferred form for supplementation due to its superior bioavailability compared to other forms. Avoid strontium ranelate, which is a pharmaceutical compound with different safety considerations and is not available as an over-the-counter supplement in the US.
Clinical research typically uses 680mg of strontium citrate daily, which is the dose most commonly found in full-strength products. However, some practitioners recommend starting with lower doses around 227-340mg and gradually increasing. Products offering flexible dosing through single-capsule servings allow you to customize your intake with guidance from a healthcare provider.
Timing matters significantly with strontium. It should always be taken at least two hours apart from calcium supplements or high-calcium foods, as strontium and calcium compete for the same absorption pathways. Most experts recommend taking strontium before bed on an empty stomach for optimal absorption. Look for products manufactured in GMP-certified facilities with third-party testing.
Individuals with impaired kidney function should consult a healthcare provider before taking strontium, as the mineral is primarily excreted through the kidneys. Strontium can inflate DEXA scan results by 8-11% due to its higher molecular weight compared to calcium, so inform your healthcare provider about strontium use before bone density testing.
Frequently Asked Questions
What is strontium and what does it do for bones?
Strontium is a naturally occurring trace mineral found in soil, water, and many foods, particularly root vegetables. In the body, nearly all strontium resides in bone and connective tissue. It supports bone health through a dual mechanism: stimulating osteoblasts (cells that build new bone) while inhibiting osteoclasts (cells that break down bone). This dual action can help increase bone mass and density when taken consistently.
How much strontium should I take daily?
The most commonly studied dose is 680mg of strontium citrate daily, taken as a single dose before bed. Some practitioners start patients at lower doses of 227-340mg and gradually increase. Always work with a healthcare provider to determine the appropriate dose for your specific bone health needs.
When is the best time to take strontium?
Strontium should be taken at bedtime on an empty stomach, at least two hours after your last calcium supplement or high-calcium meal. Taking it before sleep ensures optimal absorption without interference from calcium, which competes for the same absorption pathways.
Are there any side effects of strontium?
Strontium citrate supplements are generally well tolerated. Some individuals may experience mild digestive discomfort when first starting supplementation. Strontium may cause temporary transient increases in creatine kinase levels that are not associated with any disorder. Those with kidney impairment should consult a healthcare provider before use.
Can I take strontium with calcium supplements?
Yes, but they should not be taken at the same time. Strontium and calcium compete for absorption, so separate them by at least two hours. A common strategy is to take calcium with meals during the day and strontium before bed. Both are important for bone health and work well as part of a comprehensive bone support regimen.
How long does it take for strontium to affect bone density?
Clinical studies have shown measurable changes in bone density within six months of consistent supplementation, though the most significant results are typically seen after one to three years of regular use. Bone remodeling is a slow process, so patience and consistency are key.
