Osteo-Guard

by Douglas Laboratories · tablet or pill · 120 tablets

  • On the market (NIH)
  • UPC 7 45287 04011 9
  • DSLD label 31336
  • Serving 1 tablet
  • 120 servings

Osteo-Guard by Douglas Laboratories lists 4 ingredients, 4 with an amount per serving of 1 tablet, such as 15 mcg of vitamin K1, 250 mg of calcium, 120 mg of phosphorus and 0.5 mg of boron. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2014.

What is in Osteo-Guard?

Each row as the label prints it, per serving of 1 tablet. 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).

Osteo-Guard: Supplement Facts rows against the market (DSLD label 31336, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin K115 mcg19%Vitamin K in Osteo-Guard against 4,607 products15 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg15 mcg

93% of 4,607 products listing vitamin K give more (median 80 mcg).

Calciumas microcrystalline hydroxyapatite complexCalcium (Form: as microcrystalline hydroxyapatite complex)250 mg25%Calcium in Osteo-Guard against 17,831 products250 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg250 mg

Higher than 73% of 17,831 products listing calcium (median 115 mg).

Phosphorusas microcrystalline hydroxyapatite complexPhosphorus (Form: as microcrystalline hydroxyapatite complex)120 mg12%Phosphorus in Osteo-Guard against 3,786 products120 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg120 mg

Higher than 62% of 3,786 products listing phosphorus (median 90 mg).

Boronas Boron Amino Acid ChelateBoron (Form: as Boron Amino Acid Chelate)0.5 mgBoron in Osteo-Guard against 3,339 products0.5 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg0.5 mg

65% of 3,339 products listing boron give more (median 1 mg).

Source: NIH ODS Dietary Supplement Label Database, label 31336 (entered March 25, 2014), version 9.4.0. See the label on DSLD. 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:

  • 93% of the 4,607 products that print an amount of vitamin K list more than its 15 mcg of vitamin K (median 80 mcg).

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 Osteo-Guard'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
Suggested Usage: As a dietary supplement, adults take 1 tablet daily with food or as directed by your healthcare professional.
Warnings
WARNING: This product contains Vitamin K, which intereferes with the prescription drugs Coumadin and Warfarin. Do not take this if taking either of these drugs.
KEEP OUT OF REACH OF CHILDREN.
Tamper resistant package, do not use if outer seal is missing.
Storage
.For optimal storage conditions, store in a cool, dry place. (59(0) - 77(0)F/15(0) - 25(0)C) (35-65% relative humidity)

Source: label statements in DSLD label 31336.

What else is on the label?

Other ingredients: Cellulose, Hydroxypropyl Methylcellulose, Croscarmellose Sodium, Vegetable Stearate, Silica, Water, Polyethylene Glycol, Magnesium Silicate, (poly) ethenol, Polysorbate 80.

How many labels does Osteo-Guard have?

3 labels are on file under this name since February 23, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 31336 (current) Entered March 25, 2014 · on the market · 120 tablets · UPC 7 45287 04011 9
  2. Label 10987 Entered July 25, 2012 · off the market July 31, 2013 · 120 tablets · UPC 7 45287 04011 9
  3. Label 5237 Entered February 23, 2012 · off the market January 20, 2012 · 120 tablets · UPC 7 45287 04011 9

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

Who makes it?

The label names Douglas Laboratories (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.

Where next?