PlainVitamins

Gluco Guardian

by JayLab Pro · capsule · 30 capsules

  • On the market (NIH)
  • UPC 8 54389 00708 8
  • DSLD label 336785
  • Serving 1 capsule
  • 30 servings

Gluco Guardian by JayLab Pro lists 20 ingredients, 7 with an amount per serving of 1 capsule, such as 50 mg of vitamin C, 15 mg of vitamin E, 300 mcg of biotin and 125 mg of magnesium; 13 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2025.

What is in Gluco Guardian?

Each row as the label prints it, per serving of 1 capsule. 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 Guardian: Supplement Facts rows against the market (DSLD label 336785, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid50 mg56%Vitamin C in Gluco Guardian against 18,583 products50 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg50 mg

77% of 18,583 products listing vitamin C give more (median 100 mg).

Vitamin Eas D-Alpha-Tocopheryl Succinate15 mg100%
Biotin300 mcg1,000%Biotin in Gluco Guardian against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg).

Magnesiumas Magnesium Oxide125 mg30%Magnesium in Gluco Guardian against 14,003 products125 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg125 mg

Higher than 66% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc Oxide7.5 mg68%Zinc in Gluco Guardian 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).

Manganeseas Manganese Amino Acid Chelate1 mg43%Manganese in Gluco Guardian against 7,016 products1 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg1 mg

70% of 7,016 products listing manganese give more (median 2 mg).

Chromiumas Chromium Amino Acid Chelate76 mcg217%Chromium in Gluco Guardian against 7,825 products76 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg76 mcg

58% of 7,825 products listing chromium give more (median 100 mcg).

Proprietary Blend207.7 mg
Bitter Melon Fruit Extract4:1in the blend, no amount given
Cinnamonas Cinnamomum cassiain the blend, no amount given
Deglycyrrhizinated Licorice Root Extractin the blend, no amount given
Guggul, Powderin the blend, no amount given
Gymnema sylvestre, Powderin the blend, no amount given
Alpha-Lipoic Acidin the blend, no amount given
Banaba Leaf Extractas Lagerstroemia speciosa Leaf Extractstd. to 1% corosolic acidin the blend, no amount given
Juniper, Powderin the blend, no amount given
Taurinein the blend, no amount given
White Mulberry Leaf Extractin the blend, no amount given
Yarrow, Powderin the blend, no amount given
Cayenne Pepper, Powderin the blend, no amount given
Vanadyl Sulfatein the blend, no amount given

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

Source: NIH ODS Dietary Supplement Label Database, label 336785 (entered August 22, 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 13 ingredients sit inside a blend, so their amounts cannot be compared.

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
Suggested use: As a dietary supplement, adults take one (1) capsule daily. For best results, take with 6-8 oz of water or as directed by a healthcare professional.
Warnings
Caution: Do not exceed recommended dose. Do not use if safety seal is damaged or missing.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of the reach of children.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 336785.

What else is on the label?

Other ingredients: Cellulose, Microcrystalline Cellulose, Olive Oil.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Good Manufacturing Practice Certified Made in the USA using foreign and U.S. ingredients Manufactured in a FDA Registered Facility.

How many labels does Gluco Guardian have?

3 labels are on file under this name since May 22, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 336785 (current) Entered August 22, 2025 · on the market · 30 capsules · UPC 8 54389 00708 8
  2. Label 250465 Entered May 22, 2021 · off the market May 12, 2025 · 30 capsules · UPC 8 54389 00708 8
  3. Label 220898 Entered May 22, 2020 · off the market April 23, 2021 · 30 capsules · UPC 8 54389 00708 8

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

Who makes it?

The label names JayLab Pro (distributor), Saint Charles, MO. All JayLab Pro products.

Where next?