PlainVitamins

GS-500 Glucosamine Sulfate

by Enzymatic Therapy · capsule · 180 veg capsules

  • Off the market since June 2018 (NIH)
  • UPC 7 63948 01780 5
  • DSLD label 77773
  • Serving 3 capsules
  • 60 servings

GS-500 Glucosamine Sulfate by Enzymatic Therapy lists 2 ingredients, 2 with an amount per serving of 3 capsules, such as 234 mg of chloride and 1.5 g of glucosamine sulfate, beside 3 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on January 25, 2018.

What is in GS-500 Glucosamine Sulfate?

Each row as the label prints it, per serving of 3 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).

GS-500 Glucosamine Sulfate: Supplement Facts rows against the market (DSLD label 77773, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories5 Calories
Total Carbohydrates1 g1%Carbohydrate in GS-500 Glucosamine Sulfate against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g).

Dietary Fiberless than 1 g2%
Chlorideas Glucosamine SulfateChloride (Form: from Glucosamine Sulfate)234 mg7%Chloride in GS-500 Glucosamine Sulfate against 1,476 products234 mg per serving; the middle half of products list 60 mg to 183.5 mg, the median 75 mg.DV 2,300 mgUL 3,600 mg234 mg

Higher than 79% of 1,476 products listing chloride (median 75 mg).

Sodiumas Glucosamine SulfateSodium (Form: from Glucosamine Sulfate)160 mg7%Sodium in GS-500 Glucosamine Sulfate against 14,514 products160 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.160 mg

Higher than 77% of 14,514 products listing sodium (median 55 mg).

Glucosamine Sulfateas Crab, ShrimpGlucosamine Sulfate (Form: Crab Shells, Shrimp Shells) Note: stabilized1.5 gGlucosamine Sulfate in GS-500 Glucosamine Sulfate against 875 products1.5 g per serving; the middle half of products list 0.5 g to 1.5 g, the median 1 g.1.5 g

Higher than 64% of 875 products listing glucosamine sulfate (median 1 g).

Source: NIH ODS Dietary Supplement Label Database, label 77773 (entered January 25, 2018), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

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?

6 products list the very same ingredients; the nearest amounts come first.

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
Recommendation: Take 3 capsules daily.
Warnings
Keep out of reach of children.
Safety sealed with printed outer shrink-wrap and inner seal. Do not use if either is broken or missing.
If pregnant, nursing or taking any medications, consult a healthcare professional before use.
Contains shellfish (crab and shrimp).
Allergens and what it does not contain
Gluten free. No sugar, yeast, corn, wheat, soy, dairy products, artificial colors, flavors or preservatives.

Source: label statements in DSLD label 77773.

What else is on the label?

Other ingredients: Cellulose, plant-derived Capsule, Magnesium Stearate, Silicon Dioxide.

How many labels does GS-500 Glucosamine Sulfate have?

10 labels are on file under this name since September 25, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 77773 (current) Entered January 25, 2018 · off the market June 21, 2018 · 180 veg capsules · UPC 7 63948 01780 5
  2. Label 77778 Entered August 22, 2017 · off the market October 1, 2019 · 240 veg capsules · UPC 7 63948 01787 4
  3. Label 77777 Entered August 22, 2017 · off the market June 21, 2018 · 60 veg capsules · UPC 7 63948 01786 7
  4. Label 77775 Entered August 22, 2017 · off the market June 21, 2018 · 120 veg capsules · UPC 7 63948 01782 9
  5. Label 58107 Entered March 24, 2016 · off the market April 12, 2017 · 60 veg capsules · UPC 7 63948 01786 7
  6. Label 53867 Entered December 23, 2015 · off the market April 12, 2017 · 180 veg capsules · UPC 7 63948 01780 5
  7. Label 25194 Entered September 25, 2013 · off the market February 25, 2016 · 60 capsules · UPC 7 63948 01786 7
  8. Label 25193 Entered September 25, 2013 · off the market October 15, 2014 · 120 capsules · UPC 7 63948 01782 9
  9. Label 25192 Entered September 25, 2013 · off the market November 9, 2015 · 180 capsules · UPC 7 63948 01780 5
  10. Label 25191 Entered September 25, 2013 · off the market April 12, 2017 · 240 capsules · UPC 7 63948 01787 4

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

Who makes it?

The label names Enzymatic Therapy, LLC (part of Nature's Way Brands, LLC) (manufacturer), Green Bay, WI. All Enzymatic Therapy products.

Where next?