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Thorne Research · Mineral supplement

Double Strength Zinc Picolinate

5 ingredients on file in the NIH Dietary Supplement Label Database. Off-market, label data preserved for reference.

5
Ingredients
3
Nutrient categories
Top 75%
By ingredient count

Double Strength Zinc Picolinate is a mineral supplement by Thorne Research in capsule form, listing 5 ingredients in the NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. Currently listed as off-market (no longer available for purchase, but label data is preserved). Daily Value percentages shown below are based on FDA reference daily intake amounts for adults.

Product Details

Form
Capsule
Database Entry Date
2012-11-21
Ingredients
5

Supplement Facts (5 Ingredients)

Ingredient Group Amount % DV
Zinc Zinc Not disclosed on label No DV
Microcrystalline Cellulose Cellulose Not disclosed on label No DV
Hypromellose (derived from Cellulose) Capsule Hypromellose Not disclosed on label No DV
Leucine Leucine Not disclosed on label No DV
Silicon Dioxide Silicon Not disclosed on label No DV

How does Double Strength Zinc Picolinate compare?

Ingredients listed on each label, against the mineral category average of 6.5. Data from the NIH DSLD.

Double Strength Zinc Picolinate5
100% Casein Vanilla Cream23
Mineral average6.5

Double Strength Zinc Picolinate lists 18 ingredients fewer than 100% Casein Vanilla Cream. That is 1 below the mineral average.

What the Label Data Shows

Double Strength Zinc Picolinate is a compact, 5-ingredient mineral supplement from Thorne Research, sold in capsule form, cataloged in the NIH Dietary Supplement Label Database (DSLD). These ingredients span 3 nutrient categories, mineral, other, amino acid, reflecting a multi-component formula rather than a single-nutrient product.

With only 5 ingredients on the label, 5 of 5 sit outside the FDA's reference-intake system, common for a compact label built from botanicals, amino acids, or specialty ingredients that simply don't carry an FDA-set Daily Value benchmark.

Market status matters for supplement research. This product is currently listed as off-market in the DSLD, with its label first entered into the database on 2012-11-21. Off-market products are no longer being produced or distributed under this label, but the DSLD preserves their historical label data for researchers, consumers checking older bottles, and for tracking how formulations have evolved.

About the DSLD database

The DSLD is a label database, not an FDA approval list, under the 1994 DSHEA framework, dietary supplements do not require pre-market approval, and label information reflects what manufacturers self-declare rather than independent laboratory verification. This page presents factual label data for reference only and is not medical advice; consult a licensed healthcare provider before making decisions about any supplement.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD) Supplement label data for Double Strength Zinc Picolinate: ingredients, % Daily Value, market status, brand · 2026 DSLD captures manufacturer-self-declared label information; the NIH does not verify accuracy or evaluate safety/efficacy. Dietary supplements are regulated under DSHEA 1994, no pre-market FDA approval is required.

Ingredient Breakdown by Category

mineral
2
Zinc, Silicon Dioxide
other
2
Microcrystalline Cellulose, Hypromellose (derived from Cellulose) Capsule
amino acid
1
Leucine

Daily Value Coverage

0
Above 100% DV
0
Below 100% DV
5
No DV Established

Frequently Asked Questions

What ingredients are in Double Strength Zinc Picolinate?
Double Strength Zinc Picolinate contains 5 ingredients. Ingredients span 3 categories: mineral, other, amino acid.
Who manufactures Double Strength Zinc Picolinate?
Double Strength Zinc Picolinate is was manufactured by Thorne Research. It is classified as a Mineral supplement in capsule form.
Is Double Strength Zinc Picolinate still available for purchase?
According to the NIH DSLD database, Double Strength Zinc Picolinate is listed as off-market and may no longer be available for purchase.
What is the serving size of Double Strength Zinc Picolinate?
The serving size is not specified.
What type of supplement is Double Strength Zinc Picolinate?
Double Strength Zinc Picolinate is classified as a "Mineral" supplement in the NIH database. This category includes products primarily composed of mineral ingredients. DSLD sorts every supplement into one of 9 categories overall: Vitamin, Mineral, Botanical, Amino Acid & Protein, Non-Nutrient, Fat & Fatty Acid, Multi-Vitamin & Mineral, Botanical with Nutrients, or Other Combinations.
Data Sources & Methodology

Data as of 2025. Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD).

Supplement label data sourced from the Source: NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. The DSLD contains label information from dietary supplement products marketed in the United States.

Daily Value (DV) percentages are based on Source: FDA 21 CFR 101.9 Reference Daily Intake (RDI) values for adults. Products marked "Off Market" may no longer be available for purchase but their label data remains in the database for reference.

Disclaimer, Not Medical Advice

Label data from the Source: NIH Dietary Supplement Label Database (DSLD). This information is for educational and reference purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting, stopping, or combining any dietary supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. This page draws directly on the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.