PlainVitamins

Gluco-Support Formula

by Douglas Laboratories · tablet or pill · 120 tablets

  • On the market (NIH)
  • UPC 3 10539 84075 7
  • DSLD label 261137
  • Serving 3 tablets
  • 40 servings

Gluco-Support Formula by Douglas Laboratories lists 39 ingredients, 27 with an amount per serving of 3 tablets, such as 4,500 mcg of vitamin A, 750 mg of vitamin C, 0.9 mcg (36 IU) of vitamin D3 and 100.5 mg of vitamin E; 12 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on February 23, 2022.

What is in Gluco-Support Formula?

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

Gluco-Support Formula: Supplement Facts rows against the market (DSLD label 261137, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene, Vitamin A AcetateVitamin A (Form: as 25% Vitamin A Acetate, as [3,375 mcg] 75% Beta-Carotene)4,500 mcg500%
Vitamin Cas Ascorbic Acid750 mg833%Vitamin C in Gluco-Support Formula against 18,583 products750 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg750 mg

Higher than 90% of 18,583 products listing vitamin C (median 100 mg).

Vitamin D3as CholecalciferolVitamin D3 (Alt. Name: Cholecalciferol) Note: 37.5 IU0.9 mcg (36 IU)5%Vitamin D in Gluco-Support Formula against 14,175 products0.9 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg0.9 mcg

99% of 14,175 products listing vitamin D give more (median 15 mcg).

Vitamin Eas Vitamin E Succinate100.5 mg666%
Thiamineas Thiamine Mononitrate37.5 mg3,125%Thiamin in Gluco-Support Formula against 9,830 products37.5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg37.5 mg

Higher than 81% of 9,830 products listing thiamin (median 5 mg).

Riboflavin18.75 mg1,442%Riboflavin in Gluco-Support Formula against 9,824 products18.75 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg18.75 mg

Higher than 72% of 9,824 products listing riboflavin (median 4 mg).

Niacin/Niacinamide90 mg563%Niacin in Gluco-Support Formula against 12,413 products90 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg90 mg

Higher than 88% of 12,413 products listing niacin (median 20 mg). 2.6 times the adult UL a day.

Vitamin B6 Complexas Pyridoxal 5-Phosphate, Pyridoxine Hydrochloride18.75 mg1,103%Vitamin B6 in Gluco-Support Formula against 15,277 products18.75 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg18.75 mg

Higher than 71% of 15,277 products listing vitamin B6 (median 6 mg).

Folateas Folic Acid1,000 mcg DFE250%
Folic Acid600 mcg
Vitamin B12as Cyanocobalamin75 mcg3,125%Vitamin B12 in Gluco-Support Formula against 14,425 products75 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg75 mcg

Higher than 60% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin225 mcg750%Biotin in Gluco-Support Formula against 9,447 products225 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg225 mcg

Higher than 52% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acidas D-Calcium Pantothenate37.5 mg750%Pantothenic Acid (Vitamin B5) in Gluco-Support Formula against 10,060 products37.5 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg37.5 mg

Higher than 70% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate, Choline Citrate15 mg3%Choline in Gluco-Support Formula against 4,738 products15 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg15 mg

76% of 4,738 products listing choline give more (median 40 mg).

Calciumas Calcium Ascorbate, Calcium Carbonate, Calcium Citrate225 mg17%Calcium in Gluco-Support Formula against 17,831 products225 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg225 mg

Higher than 71% of 17,831 products listing calcium (median 115 mg).

Magnesium Complexas Magnesium Ascorbate, Magnesium Aspartate, Magnesium OxideMagnesium Complex (Form: as Magnesium Aspartate, Magnesium Ascorbate, Magnesium Oxide)225 mg54%

The label names the compound (Magnesium Complex); its amount is likely the compound's weight, not the magnesium it holds, so it is not placed among other products.

Zincas Zinc Aspartate, Zinc Krebs Cycle Chelates, Zinc Oxide15 mg136%Zinc in Gluco-Support Formula against 13,186 products15 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg15 mg

Higher than 56% of 13,186 products listing zinc (median 11 mg).

Seleniumas Selenium Krebs Cycle Chelate150 mcg273%Selenium in Gluco-Support Formula against 7,658 products150 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg150 mcg

Higher than 80% of 7,658 products listing selenium (median 55 mcg).

Copperas Copper Krebs Cycle Chelates1.5 mg167%Copper in Gluco-Support Formula against 6,468 products1.5 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg1.5 mg

Higher than 62% of 6,468 products listing copper (median 1 mg).

Manganese Complexas Manganese Aspartate, Manganese Sulfate11 mg478%

The label names the compound (Manganese Complex); its amount is likely the compound's weight, not the manganese it holds, so it is not placed among other products.

Chromiumas Chromium Polynicotinate150 mcg429%Chromium in Gluco-Support Formula against 7,825 products150 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg150 mcg

Higher than 69% of 7,825 products listing chromium (median 100 mcg).

Molybdenumas Molybdenum Krebs Cycle Chelates37.5 mcg83%Molybdenum in Gluco-Support Formula against 4,390 products37.5 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg37.5 mcg

65% of 4,390 products listing molybdenum give more (median 50 mcg).

Potassium Complexas Potassium Aspartate, Potassium Chloride56.25 mg1%
Gluco-Support Proprietary Blend375 mg
Momordica charantia extractin the blend, no amount given
Gymnema sylvestre extractin the blend, no amount given
Dandelionin the blend, no amount given
Goldensealin the blend, no amount given
Acetyl-L-Carnitine HClin the blend, no amount given
Lemon Bioflavonoids Complexin the blend, no amount given
Betaine HClin the blend, no amount given
Grape Seed Extractas Polyphenolsin the blend, no amount given
Lipoic Acidin the blend, no amount given
L-Methioninein the blend, no amount given
L-Cysteine/N-Acetyl-L-Cysteineas L-Cysteine, N-Acetyl L-Cysteinein the blend, no amount given
Glutamic Acidin the blend, no amount given
Coenzyme Q-10in the blend, no amount given
Aspartic Acid210 mgAspartic Acid in Gluco-Support Formula against 377 products210 mg per serving; the middle half of products list 106 mg to 1,846 mg, the median 337 mg.210 mg

65% of 377 products listing aspartic acid give more (median 337 mg).

Paba37.5 mgPABA in Gluco-Support Formula against 1,610 products37.5 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.37.5 mg

Higher than 60% of 1,610 products listing PABA (median 25 mg).

Inositol18.75 mgInositol in Gluco-Support Formula against 4,042 products18.75 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.18.75 mg

68% of 4,042 products listing inositol give more (median 30 mg).

Boronas Boron Aspartate, Boron CitrateBoron (Form: Boron Aspartate, Boron Citrate complex)0.75 mgBoron in Gluco-Support Formula against 3,339 products0.75 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg0.75 mg

62% of 3,339 products listing boron give more (median 1 mg).

Trace Elementsas SeawaterTrace Elements (Form: from Seawater)75 mcg
Vanadiumas Vanadium Krebs Cycle Chelates18.75 mcgVanadium in Gluco-Support Formula against 1,744 products18.75 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg18.75 mcg

56% of 1,744 products listing vanadium give more (median 25 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 261137 (entered February 23, 2022), 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:

  • 99% of the 14,175 products that print an amount of vitamin D list more than its 0.9 mcg (36 IU) of vitamin D (median 15 mcg (600 IU)).
  • At 1 serving a day, the most its directions give, the label lists 90 mg of niacin, 2.6 times the adult Tolerable Upper Intake Level.

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 Gluco-Support 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
Suggested Usage: As a dietary supplement, adults take 3 tablets daily with food or as directed by your health professional.
Warnings
Warning: If you are pregnant or nursing, or if you have any health condition or if you are taking any medication, consult your health professional before using this product.
Discontinue immediately if a burning sensation occurs. Not recommended for people with ulcers.
Keep out of the reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, Non-GMO
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 261137.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Stearic Acid, Tablet Coating, Vegetable Stearate, Croscarmellose Sodium, Silica.

How many labels does Gluco-Support Formula have?

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

  1. Label 261137 (current) Entered February 23, 2022 · on the market · 120 tablets · UPC 3 10539 84075 7
  2. Label 245295 Entered February 25, 2021 · off the market September 9, 2021 · 120 tablets · UPC 3 10539 84075 7
  3. Label 231837 Entered August 23, 2020 · off the market January 31, 2024 · 120 tablets · UPC 3 10539 84075 7
  4. Label 31037 Entered March 25, 2014 · off the market July 24, 2020 · 120 tablets · UPC 3 10539 84075 7
  5. Label 10238 Entered June 25, 2012 · off the market July 31, 2013 · 120 tablets · UPC 3 10539 84075 7

DSLD also links this label to: Ultra Preventive 2000 Series Gluco-Support Formula (image difference, same product).

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?