PlainVitamins

Skeletal Strength

by Nature's Sunshine · tablet or pill · 150 tablets

  • On the market (NIH)
  • UPC 0 99904 01806 8
  • DSLD label 255460
  • Serving 2 tablets
  • 75 servings

Skeletal Strength by Nature's Sunshine lists 21 ingredients, 14 with an amount per serving of 2 tablets, such as 75 mcg of vitamin A, 75 mg of vitamin C, 2.5 mcg (100 IU) of vitamin D3 and 2.5 mg of vitamin B6; 7 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on September 24, 2021.

What is in Skeletal Strength?

Each row as the label prints it, per serving of 2 tablets. 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).

Skeletal Strength: Supplement Facts rows against the market (DSLD label 255460, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene75 mcg8%
Vitamin Cas Ascorbic Acid75 mg83%Vitamin C in Skeletal Strength against 18,583 products75 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg75 mg

62% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 150 mg.

Vitamin D3as Cholecalciferol2.5 mcg (100 IU)13%Vitamin D in Skeletal Strength against 14,175 products2.5 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg2.5 mcg

92% of 14,175 products listing vitamin D give more (median 15 mcg). Per day at the most servings: 5 mcg.

Vitamin B6as Pyridoxine Hydrochloride2.5 mg147%Vitamin B6 in Skeletal Strength against 15,277 products2.5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2.5 mg

67% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 5 mg.

Vitamin B12as Cyanocobalamin15 mcg625%Vitamin B12 in Skeletal Strength against 14,425 products15 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg15 mcg

61% of 14,425 products listing vitamin B12 give more (median 36 mcg). Per day at the most servings: 30 mcg.

Calciumas Calcium Amino Acid Chelate, Calcium Citrate, Dicalcium Phosphate300 mg23%Calcium in Skeletal Strength against 17,831 products300 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg300 mg

Higher than 77% of 17,831 products listing calcium (median 115 mg). Per day at the most servings: 600 mg.

Ironas Ferrous Gluconate1.5 mg8%Iron in Skeletal Strength against 6,910 products1.5 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg1.5 mg

72% of 6,910 products listing iron give more (median 5 mg). Per day at the most servings: 3 mg.

Phosphorusas Dicalcium Phosphate94 mg8%Phosphorus in Skeletal Strength against 3,786 products94 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg94 mg

Higher than 51% of 3,786 products listing phosphorus (median 90 mg). Per day at the most servings: 188 mg.

Magnesiumas Magnesium Amino Acid Chelate, Magnesium Oxide300 mg71%Magnesium in Skeletal Strength against 14,003 products300 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg300 mg

Higher than 87% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 600 mg. 1.7 times the adult UL a day.

Zincas Zinc Oxide7.5 mg68%Zinc in Skeletal Strength against 13,186 products7.5 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg7.5 mg

63% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 15 mg.

Copperas Copper Gluconate1 mg111%Copper in Skeletal Strength against 6,468 products1 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg1 mg

40% of 6,468 products listing copper give more (median 1 mg). Per day at the most servings: 2 mg.

Manganeseas Manganese Amino Acid Chelate0.5 mg22%Manganese in Skeletal Strength against 7,016 products0.5 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg0.5 mg

86% of 7,016 products listing manganese give more (median 2 mg). Per day at the most servings: 1 mg.

Potassiumas Potassium Gluconate50 mg1%Potassium in Skeletal Strength against 11,614 products50 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg50 mg

72% of 11,614 products listing potassium give more (median 99 mg). Per day at the most servings: 100 mg.

Boronas Boron Amino Acid Chelate0.5 mgBoron in Skeletal Strength 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). Per day at the most servings: 1 mg.

Proprietary Blend108 mg
Horsetailin the blend, no amount given
Betaine HClin the blend, no amount given
Papaya fruit concentratein the blend, no amount given
Parsleyin the blend, no amount given
Pineapple fruit juice concentratein the blend, no amount given
Valerianin the blend, no amount given
Licorice root extractin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 255460 (entered September 24, 2021), 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:

  • 92% of the 14,175 products that print an amount of vitamin D list more than its 2.5 mcg (100 IU) of vitamin D (median 15 mcg (600 IU)).
  • At 2 servings a day, the most its directions give, the label lists 600 mg of magnesium, 1.7 times the adult Tolerable Upper Intake Level.
  • 86% of the 7,016 products that print an amount of manganese list more than its 0.5 mg of manganese (median 2 mg).

The NIH database records 2 servings 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 Skeletal Strength'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
Recommended Use: Take 2 tablets with a meal twice daily.
Warnings
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
Do not use if inner seal is missing or damaged.

Source: label statements in DSLD label 255460.

What else is on the label?

Other ingredients: Cellulose, Stearic Acid, Vegetable Magnesium Stearate.

How many labels does Skeletal Strength have?

7 labels are on file under this name since January 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 255460 (current) Entered September 24, 2021 · on the market · 150 tablets · UPC 0 99904 01806 8
  2. Label 221319 Entered May 22, 2020 · off the market June 9, 2021 · 150 tablets · UPC 0 99904 01806 8
  3. Label 32259 Entered April 25, 2014 · off the market October 1, 2012 · 150 tablets · UPC 0 99904 01806 8
  4. Label 29402 Entered January 24, 2014 · off the market April 7, 2020 · 150 tablets · UPC 0 99904 01806 8
  5. Label 17899 Entered January 25, 2013 · off the market December 30, 2013 · 150 tablets · UPC 0 99904 01806 8
  6. Label 5574 Entered February 23, 2012 · off the market August 29, 2023 · 60 packets
  7. Label 5518 Entered January 25, 2012 · off the market November 18, 2024

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

Who makes it?

The label names Nature's Sunshine Products, Inc. (manufacturer), Spanish Fork, UT. All Nature's Sunshine products.

Where next?