Dr. Strum's Intensive Bone Formula
Life Extension
Dr. Strum's Intensive Bone Formula
4.5
★ ★ ★ ★ ★
(159 ratings)
Calcium 800 mg
Boron 6 mg
Vitamin K 200 mcg
Silicon 5 mg
Magnesium 400 mg
Potassium 1173 mg
Score 90.0
A high-potency, multi-faceted bone health supplement offering superior forms and dosages of calcium, magnesium, D3, and K2, complemented by boron, silicon, and a unique Cissus extract for comprehensive skeletal and cardiovascular benefits.
Quantity: 300 Capsule(s)Servings size: 10 Capsule(s) (30 servings)
Selected goals:
Other goals:
Bone Health
Joint Health
Heart Health
Fitness
Muscle Gain
leaderboard Score 90.0
A high-potency, multi-faceted bone health supplement offering superior forms and dosages of calcium, magnesium, D3, and K2, complemented by boron, silicon, and a unique Cissus extract for comprehensive skeletal and cardiovascular benefits.
insights Analysis
Dr. Strum's Intensive Bone Formula represents a gold standard in bone health supplementation, integrating a synergistic blend of minerals and vitamins vital for bone density and strength. It provides 800mg of highly absorbable Dicalcium Malate and 400mg of Magnesium Citrate, foundational for bone matrix integrity. The robust 8000 IU of Vitamin D3 ensures maximum calcium absorption, while 200mcg of Vitamin K2 (as Menaquinone-7) is critical for directing calcium to bones and away from arteries, thus also supporting cardiovascular health. Furthermore, the inclusion of 18mg of Boron and 10mg of Silicon actively participates in bone formation and mineralization processes, and 600mg of Winged Treebine extract (Cissus quadrangularis) offers unique benefits for bone fracture healing and joint tissue repair, making this formula uniquely comprehensive and potent according to nutritional science and user reviews.
- Comprehensive formulation with essential minerals and vitamins for bone health.
- Uses highly bioavailable forms of calcium (Dicalcium Malate) and magnesium (Magnesium Citrate).
- Contains optimal and high dosages of Vitamin D3 (8000 IU) and Vitamin K2 (MK-7) for superior calcium utilization and arterial health.
- Includes synergistic ingredients like Boron, Silicon, and Winged Treebine (Cissus quadrangularis) for enhanced bone formation, mineralization, and joint support.
- Potassium citrate offers potential bone density and blood pressure benefits.
- High price per serving ($1.40) makes it a premium investment.
- The 18mg dosage of Boron is considerably higher than typical recommendations and may be excessive for some individuals.
- Requires consuming multiple capsules to achieve the full serving, which can be inconvenient for some users.
- Individuals with pre-existing kidney conditions or those on medications affecting potassium levels should consult a healthcare professional due to the high potassium citrate content.
- The high Vitamin D3 dosage (8000 IU) should be monitored by a healthcare provider for prolonged use, especially for those prone to hypercalcemia or with certain medical conditions.
$42.00($1.40 per serving)
 iHerb | $ 42.00 |
bolt Effectiveness for goals
Calcium is a primary building block for bones. Vitamin D3 helps the body absorb calcium from the diet, while Vitamin K2 (menaquinone-7) guides absorbed calcium to the bones and away from soft tissues. This combination is crucial for maintaining bone mineral density and proper calcium utilization.
Magnesium is essential for over 300 biochemical reactions in the body, including those related to bone structure and density. It plays a role in regulating calcium and vitamin D levels. Adequate magnesium is vital for optimal bone mineral density and the proper function of bone-building cells.
Boron affects the metabolism of calcium, magnesium, and vitamin D, potentially enhancing bone mineral density and strength. Silicon contributes to the bone matrix formation and mineralization process. Zinc is involved in bone formation, mineralization, and immune function, all of which support bone integrity.
Winged Treebine extract, particularly its ketosterones, has been studied for its potential role in promoting bone cell growth and repair. It may help support bone remodeling processes and overall bone integrity. Research suggests it could influence pathways related to bone formation and recovery.
Potassium citrate may help balance the body's pH, which can influence calcium retention. It is thought to reduce calcium excretion in urine, thereby helping to preserve bone mineral density. This can be beneficial for maintaining bone strength over time.
schedule Dosage, timing & forms
Supplements that contain a comprehensive array of ingredients, especially minerals like calcium and magnesium which are needed in larger quantities, often require multiple capsules per serving. This is because the volume of the raw ingredients needed to achieve the desired dosage can exceed what fits into a single capsule, making it a practical delivery method.
A daily intake of 8000 IU (200 mcg) of Vitamin D3 is considered a higher dose compared to standard recommendations. This level is sometimes used under professional guidance or for individuals with specific needs, such as addressing significant deficiencies. Regular monitoring of Vitamin D levels is generally recommended with such dosages.
An intake of 18 mg of boron daily is higher than the typical recommended daily intake, which is usually in the range of 1-3 mg for bone health. While boron is important for bone metabolism, high doses warrant consideration. The Tolerable Upper Intake Level (UL) for adults is generally set at 20 mg/day for boron.
Calcium and magnesium can compete for absorption when taken in very high, disproportionate amounts at the same time. However, in typical supplement doses, this interaction is often not clinically significant. Many supplements combine them to ensure adequate intake of both essential minerals.
Yes, Menaquinone-7 (Vitamin K2) is a fat-soluble vitamin, meaning it is better absorbed when taken with a meal containing some dietary fat. This improves its bioavailability, allowing the body to utilize it more effectively for its various functions, including bone health.
health_and_safety Safety & interactions
Yes, vitamin K2, like other forms of vitamin K, can interfere with anticoagulant (blood-thinning) medications such as warfarin. It is crucial to consult a healthcare professional before taking supplements containing vitamin K if you are on such medications, as it can reduce their effectiveness. Regular monitoring of blood clotting parameters may be necessary.
High doses of vitamin D3 can lead to excessive calcium levels in the blood, a condition known as hypercalcemia. Symptoms of hypercalcemia can include nausea, vomiting, weakness, frequent urination, and kidney problems. Individuals with certain health conditions or those taking other calcium-affecting medications should exercise caution.
Potassium supplements can interact with certain medications, particularly ACE inhibitors, angiotensin receptor blockers (ARBs), and potassium-sparing diuretics, which can all increase potassium levels in the body. Combining these with supplemental potassium may lead to dangerously high potassium levels (hyperkalemia). Individuals with kidney disease should also be cautious due to impaired potassium excretion.
Yes, high doses of calcium can potentially interfere with the absorption of other minerals like zinc, magnesium, and iron if taken simultaneously. To minimize this, it's often recommended to space out the intake of calcium and these other minerals by a few hours. However, the effect is typically more significant with very large doses.
Winged Treebine extract, also known as Cissus quadrangularis, may potentially affect blood sugar levels, so individuals taking diabetes medications should monitor their glucose closely. It might also have mild anticoagulant properties, suggesting caution for those on blood-thinning medications. More research is needed to fully understand all potential interactions.
Ingredients
| Ingredient | Amount per serving |
|---|---|
| Vitamin D3 (Cholecalciferol) | 200 mcg |
| Vitamin K2 (Menaquinone-7) | 200 mcg |
| Calcium (Dicalcium Malate) | 800 mg |
| Magnesium (Magnesium Citrate) | 400 mg |
| Zinc (Zinc Citrate) | 10 mg |
| Potassium (Potassium Citrate) | 1173 mg |
| Winged Treebine extract (Ketosterones) | 600 mg |
| Boron (Boron Glycinate, Boron Citrate, Boron Aspartate) | 6 mg |
| Silicon (Bamboo extract) | 5 mg |
Categories
Vitamin K 95.0
The product provides a substantial 200mcg of Vitamin K2 as Menaquinone-7 (MK-7), which is the most bioavailable and longest-acting form of K2, essential for directing calcium to bones and preventing arterial calcification, making it a highly effective component of the formula.
Calcium 90.0
Delivering 800mg of Calcium as Dicalcium Malate, the product utilizes a highly absorbable and effective form of calcium, ensuring optimal mineral uptake for bone density and strength compared to less bioavailable forms like calcium carbonate.
Magnesium 90.0
The 400mg of Magnesium is provided as Magnesium Citrate, a superior and well-tolerated form known for its high bioavailability. Magnesium is critical for over 300 enzymatic reactions, including those involved in bone formation and calcium regulation.
Goals
Bone Health 95.0
This product is exceptionally well-formulated for bone health, providing high doses of readily absorbable calcium, magnesium, vitamin D3, and K2 (MK-7), which are all crucial for bone mineralization and density. The inclusion of boron, silicon, and Winged Treebine extract further supports bone formation and integrity, addressing this goal comprehensively.
Heart Health 90.0
The synergy between high-dose Vitamin D3 and Vitamin K2 (MK-7) is paramount for cardiovascular health, directing calcium to bones and preventing its accumulation in arteries. Magnesium and potassium further contribute to healthy blood pressure and heart function, making it excellent for this goal.
Identical to 'Heart Health', the combination of Vitamin D3 and K2 (MK-7) is crucial for maintaining arterial elasticity and preventing calcification, which is a key aspect of cardiovascular health. Magnesium and potassium also play significant roles in blood pressure regulation.
Recommended Alternatives
85 Value 
Bone Restore
Life Extension
4.7
★★★★★
(1997 ratings)
From the same reputable brand, this product provides a strong, focused blend of key bone-supporting nutrients including calcium, magnesium, vitamin D3, boron, and silicon, at a significantly more affordable price per serving than the Intensive Bone Formula. It offers excellent efficacy for foundational bone health without compromising on ingredient quality or bioavailability, representing a smart investment for consistent daily support.
88 Value 
Raw Calcium
Garden of Life Vitamin Code
4.6
★★★★★
(4135 ratings)
This whole-food derived calcium supplement sourced from algae offers a naturally balanced mineral profile, including magnesium, vitamin D3, and forms of vitamin K (K1 and K2), alongside trace minerals like strontium and boron. Its inclusion of probiotics and enzymes supports digestive health and nutrient absorption, providing a holistic and bioavailable approach to bone health that delivers strong benefits for its price point.
80 Value 
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
This supplement delivers exceptional value by combining Microcrystalline Hydroxyapatite (MCH-Cal) for comprehensive mineral support with the critically important Vitamin K2 (MK-7) to optimize calcium utilization. Despite its lower price, it provides a well-rounded and effective formulation for bone building and maintenance, making it a highly efficient choice for those prioritizing effective and affordable bone health.
95 Performance 
Bone Solid
Country Life
4.6
★★★★★
(725 ratings)
This is an exceptional bone health formula, distinguishing itself by utilizing Microcrystalline Hydroxyapatite (MCHA), a bioavailable whole-bone derived calcium source that naturally includes phosphorus. It provides robust dosages of magnesium in diverse forms, a high dose of Vitamin D3, and an extensive spectrum of Vitamin K, making it incredibly comprehensive for building and maintaining strong bones, often considered a top-tier choice for holistic skeletal health.
90 Performance 
Cal/Mag/Vit D3 with Vitamin K2
NaturesPlus
4.6
★★★★★
(2209 ratings)
This alternative stands out for its high concentrations of calcium (1200mg) and magnesium (600mg), delivered in highly absorbable amino acid chelate forms that ensure optimal uptake and utilization by the body. The synergistic blend with effective doses of Vitamin D3 and Vitamin K2 (Menatetrenone) further optimizes calcium deposition into bones, making it a powerful and well-balanced choice for robust bone support.
85 Performance 
Vegan Cal Mag Plus
DEVA
4.7
★★★★★
(849 ratings)
For those seeking a vegan-friendly option, this product offers an impressive and comprehensive blend of calcium and magnesium from various plant-based and mineral sources, along with valuable co-factors like boron and a particularly high dose of silicon from Horsetail extract. Its focus on broad mineral support and emphasis on connective tissue health through silicon makes it a uniquely beneficial and ethically conscious choice for overall skeletal and joint well-being.
65 Budget 
600 + D3 plus Minerals
21st Century
4.8
★★★★★
(1551 ratings)
This alternative provides a very cost-effective way to supplement core bone nutrients with a good dose of calcium and vitamin D3. While it includes basic amounts of magnesium, zinc, and boron, its overall comprehensiveness is lower than premium bone formulas, making it a budget-friendly but less robust option.
75 Budget 
Magnesium & Calcium
NOW
4.8
★★★★★
(16706 ratings)
This alternative provides a strong foundational blend of highly absorbable calcium and magnesium, along with a beneficial dose of Vitamin D3 and Zinc, essential for bone mineralization. It offers excellent core support at a much more accessible price point compared to more complex formulas.
70 Budget 
Calcium Magnesium Zinc + D3
21st Century
4.7
★★★★★
(97627 ratings)
This supplement is an extremely affordable option for obtaining fundamental bone and overall mineral support, delivering substantial amounts of calcium, magnesium, and zinc, alongside Vitamin D3. While it offers good basic coverage for key minerals at high doses for its price point, it lacks the sophisticated forms and additional synergistic ingredients like Vitamin K2 or boron found in more comprehensive bone formulas.
85 Value
Bone Restore
Life Extension
4.7
★★★★★
(1997 ratings)
From the same reputable brand, this product provides a strong, focused blend of key bone-supporting nutrients including calcium, magnesium, vitamin D3, boron, and silicon, at a significantly more affordable price per serving than the Intensive Bone Formula. It offers excellent efficacy for foundational bone health without compromising on ingredient quality or bioavailability, representing a smart investment for consistent daily support.
88 Value
Raw Calcium
Garden of Life Vitamin Code
4.6
★★★★★
(4135 ratings)
This whole-food derived calcium supplement sourced from algae offers a naturally balanced mineral profile, including magnesium, vitamin D3, and forms of vitamin K (K1 and K2), alongside trace minerals like strontium and boron. Its inclusion of probiotics and enzymes supports digestive health and nutrient absorption, providing a holistic and bioavailable approach to bone health that delivers strong benefits for its price point.
80 Value
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
This supplement delivers exceptional value by combining Microcrystalline Hydroxyapatite (MCH-Cal) for comprehensive mineral support with the critically important Vitamin K2 (MK-7) to optimize calcium utilization. Despite its lower price, it provides a well-rounded and effective formulation for bone building and maintenance, making it a highly efficient choice for those prioritizing effective and affordable bone health.
95 Performance
Bone Solid
Country Life
4.6
★★★★★
(725 ratings)
This is an exceptional bone health formula, distinguishing itself by utilizing Microcrystalline Hydroxyapatite (MCHA), a bioavailable whole-bone derived calcium source that naturally includes phosphorus. It provides robust dosages of magnesium in diverse forms, a high dose of Vitamin D3, and an extensive spectrum of Vitamin K, making it incredibly comprehensive for building and maintaining strong bones, often considered a top-tier choice for holistic skeletal health.
90 Performance
Cal/Mag/Vit D3 with Vitamin K2
NaturesPlus
4.6
★★★★★
(2209 ratings)
This alternative stands out for its high concentrations of calcium (1200mg) and magnesium (600mg), delivered in highly absorbable amino acid chelate forms that ensure optimal uptake and utilization by the body. The synergistic blend with effective doses of Vitamin D3 and Vitamin K2 (Menatetrenone) further optimizes calcium deposition into bones, making it a powerful and well-balanced choice for robust bone support.
85 Performance
Vegan Cal Mag Plus
DEVA
4.7
★★★★★
(849 ratings)
For those seeking a vegan-friendly option, this product offers an impressive and comprehensive blend of calcium and magnesium from various plant-based and mineral sources, along with valuable co-factors like boron and a particularly high dose of silicon from Horsetail extract. Its focus on broad mineral support and emphasis on connective tissue health through silicon makes it a uniquely beneficial and ethically conscious choice for overall skeletal and joint well-being.