PlainVitamins

Dr. Strum's Intensive Bone Formula

by Life Extension · capsule · 300 capsules

  • On the market (NIH)
  • UPC 7 37870 15060 2
  • DSLD label 328436
  • Serving 10 capsules
  • 30 servings

Dr. Strum's Intensive Bone Formula by Life Extension lists 9 ingredients, 9 with an amount per serving of 10 capsules, such as 200 mcg (8,000 IU) of vitamin D3, 200 mcg of vitamin K2, 800 mg of calcium and 400 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2025.

What is in Dr. Strum's Intensive Bone Formula?

Each row as the label prints it, per serving of 10 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Dr. Strum's Intensive Bone Formula: Supplement Facts rows against the market (DSLD label 328436, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin D3as Cholecalciferol200 mcg (8,000 IU)1,000%Vitamin D in Dr. Strum's Intensive Bone Formula against 14,175 products200 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg200 mcg

Higher than 98% of 14,175 products listing vitamin D (median 15 mcg). 2 times the adult UL a day.

Vitamin K2as trans-Menaquinone-7200 mcg167%Vitamin K in Dr. Strum's Intensive Bone Formula against 4,607 products200 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg200 mcg

Higher than 91% of 4,607 products listing vitamin K (median 80 mcg).

Calciumas Calcium Carbonate, Calcium Citrate Malate800 mg62%Calcium in Dr. Strum's Intensive Bone Formula against 17,831 products800 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg800 mg

Higher than 95% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium Citrate400 mg95%Magnesium in Dr. Strum's Intensive Bone Formula against 14,003 products400 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg400 mg

Higher than 92% of 14,003 products listing magnesium (median 86 mg). 1.1 times the adult UL a day.

Zincas Zinc Citrate10 mg91%Zinc in Dr. Strum's Intensive Bone Formula against 13,186 products10 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg10 mg

51% of 13,186 products listing zinc give more (median 11 mg).

Potassiumas Potassium Citratesupplying 30 milliequivalents potassium1,173 mg25%Potassium in Dr. Strum's Intensive Bone Formula against 11,614 products1,173 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg1,173 mg

Higher than 99% of 11,614 products listing potassium (median 99 mg).

Winged Treebine extractas Ketosteronesstd. to 10% ketosterones600 mgCissus quadrangularis in Dr. Strum's Intensive Bone Formula against 140 products600 mg per serving; the middle half of products list 100 mg to 800 mg, the median 400 mg.600 mg

Higher than 65% of 140 products listing cissus quadrangularis (median 400 mg).

Siliconas Bamboo Leaf, Stem Extract, Silicon Dioxidefrom std. bamboo extract49 mgSilicon in Dr. Strum's Intensive Bone Formula against 1,220 products49 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.49 mg

Higher than 94% of 1,220 products listing silicon (median 4 mg).

Boronas Boron Aspartate, Boron Citrate, Boron Glycinate6 mgBoron in Dr. Strum's Intensive Bone Formula against 3,339 products6 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg6 mg

Higher than 96% of 3,339 products listing boron (median 1 mg).

Source: NIH ODS Dietary Supplement Label Database, label 328436 (entered March 25, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 200 mcg (8,000 IU) of vitamin D, 2 times the adult Tolerable Upper Intake Level.
  • Its 200 mcg of vitamin K is higher than 91% of the 4,607 vitamin K products that print an amount; 321 list more.
  • Its 800 mg of calcium is higher than 95% of the 17,831 calcium products that print an amount; 891 list more.
  • At 1 serving a day, the most its directions give, the label lists 400 mg of magnesium, 1.1 times the adult Tolerable Upper Intake Level.
  • Its 1,173 mg of potassium is higher than 99% of the 11,614 potassium products that print an amount; 116 list more.
  • Its 49 mg of silicon is higher than 94% of the 1,220 silicon products that print an amount; 73 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Dr. Strum's Intensive Bone Formula's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: Take ten (10) capsules daily, or as recommended by a healthcare practitioner. Scientific studies suggest calcium supplementation in divided doses with food in the morning and evening may yield the best results.
Warnings
Read the entire label and follow the directions carefully.
Caution: Individuals consuming more than 50 mcg (2,000 IU)/day of vitamin D (from diet and supplements) should obtain a serum 250hydroxy vitamin D measurement. Do not exceed 10,000 IU per day unless recommended by your healthcare provider. This product is not recommended for individuals with high blood calcium or potassium levels.
Because potassium may have numerous drug interactions (most commonly, diuretics and blood pressure medications), consult your healthcare provider before taking this product if you are taking prescription medications and/or have heart or kidney disease. Due to the vitamin K, consult with your healthcare provider before taking this product if you are taking Warfarin (Coumadin) or related medications.
Warnings: Keep out of reach of children.
Do not exceed recommended dose. Do not purchase if outer seal is damaged.
Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Warning: Reproductive harm - www.P65Warnings.ca.gov.
Allergens and what it does not contain
Gluten Free Non GMO Le Certified
Storage
Store tightly closed in a cool, dry place.

Source: label statements in DSLD label 328436.

What else is on the label?

Other ingredients: Citric Acid, Cellulose, Maltodextrin, Microcrystalline Cellulose, Malic Acid, Stearate, Food Starch, Modified.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Non GMO Le Certified.

How many labels does Dr. Strum's Intensive Bone Formula have?

8 labels are on file under this name since May 22, 2016: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 328436 (current) Entered March 25, 2025 · on the market · 300 capsules · UPC 7 37870 15060 2
  2. Label 231919 Entered August 23, 2020 · off the market August 9, 2023 · 300 capsules · UPC 7 37870 15060 2
  3. Label 231851 Entered August 23, 2020 · on the market · 300 capsules · UPC 7 37870 15063 3
  4. Label 181996 Entered October 25, 2018 · off the market July 14, 2020 · 300 capsules · UPC 7 37870 15063 3
  5. Label 181990 Entered October 25, 2018 · off the market July 14, 2020 · 300 capsules · UPC 7 37870 15060 2
  6. Label 59488 Entered May 22, 2016 · off the market May 3, 2018 · 300 capsules · UPC 7 37870 15063 3
  7. Label 59487 Entered May 22, 2016 · off the market April 1, 2016 · 300 capsules · UPC 7 37870 15063 3
  8. Label 59485 Entered May 22, 2016 · off the market April 1, 2016 · 300 capsules · UPC 7 37870 15063 3

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Quality Supplements and Vitamins, Inc. (distributor), Ft. Lauderdale, FL. All Life Extension products.

Where next?