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Dr. Clark Research Association Dr. Clark Zentrum · Amino acid/Protein supplement

Essential Amino Acids 500 mg

12 ingredients on file in the NIH Dietary Supplement Label Database. Currently on-market in the U.S.

12
Ingredients
3
Nutrient categories
Top 35%
By ingredient count

Essential Amino Acids 500 mg is a amino acid/protein supplement by Dr. Clark Research Association Dr. Clark Zentrum in capsule form, listing 12 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 on-market. Daily Value percentages shown below are based on FDA reference daily intake amounts for adults.

Product Details

Form
Capsule
Database Entry Date
2020-06-24
Ingredients
12

Supplement Facts (12 Ingredients)

Ingredient Group Amount % DV
Energy Header Not disclosed on label No DV
Protein Protein (unspecified) Not disclosed on label No DV
L-Leucine Leucine Not disclosed on label No DV
L-Lysine Lysine Not disclosed on label No DV
L-Valine Valine Not disclosed on label No DV
L-Phenylalanine Phenylalanine Not disclosed on label No DV
L-Isoleucine Isoleucine Not disclosed on label No DV
L-Threonine THREONINE Not disclosed on label No DV
L-Methionine METHIONINE Not disclosed on label No DV
L-Tryptophan Tryptophan Not disclosed on label No DV
L-Cysteine Cysteine Not disclosed on label No DV
Gelatin Gelatin Not disclosed on label No DV

How does Essential Amino Acids 500 mg compare?

Ingredients listed on each label, against the amino acid/protein category average of 12.7. Data from the NIH DSLD.

Essential Amino Acids 500 mg12
1 Up Whey Chocolate & Peanut Butter Blast20
Amino acid/Protein average12.7

Essential Amino Acids 500 mg lists 8 ingredients fewer than 1 Up Whey Chocolate & Peanut Butter Blast. That is 1 below the amino acid/protein average.

What the Label Data Shows

Essential Amino Acids 500 mg is cataloged in the NIH Dietary Supplement Label Database (DSLD) as a amino acid/protein supplement built from 12 ingredients from Dr. Clark Research Association Dr. Clark Zentrum, sold in capsule form. These ingredients span 3 nutrient categories, amino acid, protein, other, reflecting a multi-component formula rather than a single-nutrient product.

Across a broader 12-ingredient formula, 12 of 12 carry no FDA reference-intake value, typical for a formula this size: larger blends tend to pull in botanicals, amino acids, and specialty compounds without an assigned Daily Value. Breadth like this isn't a red flag by itself.

Availability status shapes how this label record is best used. This product is currently listed as on-market in the DSLD, with its label first entered into the database on 2020-06-24. On-market products are currently being distributed in the United States, though the DSLD does not verify the accuracy of label claims or evaluate safety or efficacy.

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 Essential Amino Acids 500 mg: 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

amino acid
9
L-Leucine, L-Lysine, L-Valine, +6 more
protein
2
Protein, Gelatin
other
1
Energy

Daily Value Coverage

0
Above 100% DV
0
Below 100% DV
12
No DV Established

Frequently Asked Questions

What ingredients are in Essential Amino Acids 500 mg?
Essential Amino Acids 500 mg contains 12 ingredients. Ingredients span 3 categories: amino acid, protein, other.
Who manufactures Essential Amino Acids 500 mg?
Essential Amino Acids 500 mg is currently manufactured by Dr. Clark Research Association Dr. Clark Zentrum. It is classified as a Amino acid/Protein supplement in capsule form.
Is Essential Amino Acids 500 mg still available for purchase?
Yes, Essential Amino Acids 500 mg is currently listed as on-market in the NIH DSLD database.
What is the serving size of Essential Amino Acids 500 mg?
The serving size is not specified.
What type of supplement is Essential Amino Acids 500 mg?
Essential Amino Acids 500 mg is classified as a "Amino acid/Protein" supplement in the NIH database. This category includes products primarily composed of amino acid/protein ingredients. Across the full DSLD catalog, products fall into 9 possible categories: Vitamin, Mineral, Botanical, Amino Acid & Protein, Non-Nutrient, Fat & Fatty Acid, Multi-Vitamin & Mineral, Botanical with Nutrients, and 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.