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MET-Rx · Amino acid/Protein supplement

MET-Rx Protein Plus Vanilla

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

21
Ingredients
10
Nutrient categories
Top 14%
By ingredient count

MET-Rx Protein Plus Vanilla is a amino acid/protein supplement by MET-Rx in powder form, listing 21 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
Powder
Database Entry Date
2020-12-26
Ingredients
21

Supplement Facts (21 Ingredients)

Ingredient Group Amount % DV
Calories Calories Not disclosed on label No DV
Total Fat Fat (unspecified) Not disclosed on label No DV
Saturated Fat Saturated fat Not disclosed on label No DV
Trans Fat Trans fat (unspecified) Not disclosed on label No DV
Cholesterol Cholesterol Not disclosed on label No DV
Total Carbohydrates Carbohydrate Not disclosed on label No DV
Total Sugars Sugar Not disclosed on label No DV
Protein Protein (unspecified) Not disclosed on label No DV
Calcium Calcium Not disclosed on label No DV
Phosphorus Phosphorus Not disclosed on label No DV
Magnesium Magnesium Not disclosed on label No DV
Sodium Sodium Not disclosed on label No DV
Potassium Potassium Not disclosed on label No DV
L-Glutamine Glutamine Not disclosed on label No DV
Metamyosyn Protein Blend Proprietary Blend (Combination) Not disclosed on label No DV
Natural and Artificial flavors Flavor Not disclosed on label No DV
Guar Gum Guar Not disclosed on label No DV
Cellulose Gum Cellulose Not disclosed on label No DV
Xanthan Gum Xanthan Gum Not disclosed on label No DV
Sucralose Sucralose Not disclosed on label No DV
Soy Lecithin lecithin Not disclosed on label No DV

How does MET-Rx Protein Plus Vanilla compare?

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

MET-Rx Protein Plus Vanilla21
1 Up Whey Chocolate & Peanut Butter Blast20
Amino acid/Protein average12.7

MET-Rx Protein Plus Vanilla lists 1 ingredient more than 1 Up Whey Chocolate & Peanut Butter Blast. That is 8 above the amino acid/protein average.

What the Label Data Shows

With 21 ingredients on the label, MET-Rx Protein Plus Vanilla is one of the more extensive amino acid/protein supplement formulas from MET-Rx in the NIH Dietary Supplement Label Database (DSLD), sold in powder form. These ingredients span 10 nutrient categories, fat, mineral, other, sugar, and 6 more, reflecting a multi-component formula rather than a single-nutrient product.

Across a broader 21-ingredient formula, 21 of 21 sit outside the FDA's reference-intake system entirely -- common at this scale, since multi-ingredient blends tend to accumulate botanicals, amino acids, and specialty compounds the FDA has never benchmarked. That's expected breadth, not a red flag on its own.

A product's market status is worth checking before relying on this label. This product is currently listed as on-market in the DSLD, with its label first entered into the database on 2020-12-26. An on-market listing means the product is currently sold in the United States; the DSLD catalogs the label as submitted but does not independently verify the 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 MET-Rx Protein Plus Vanilla: 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

fat
5
Total Fat, Saturated Fat, Trans Fat, +2 more
mineral
5
Calcium, Phosphorus, Magnesium, +2 more
other
2
Calories, Natural and Artificial flavors
sugar
2
Total Carbohydrates, Total Sugars
fiber
2
Guar Gum, Cellulose Gum
protein
1
Protein
amino acid
1
L-Glutamine
blend
1
Metamyosyn Protein Blend
complex carbohydrate
1
Xanthan Gum
non-nutrient/non-botanical
1
Sucralose

Daily Value Coverage

0
Above 100% DV
0
Below 100% DV
21
No DV Established

Frequently Asked Questions

What ingredients are in MET-Rx Protein Plus Vanilla?
MET-Rx Protein Plus Vanilla contains 21 ingredients. Ingredients span 10 categories: fat, mineral, other, sugar, fiber, protein, amino acid, blend, complex carbohydrate, non-nutrient/non-botanical.
Who manufactures MET-Rx Protein Plus Vanilla?
MET-Rx Protein Plus Vanilla is currently manufactured by MET-Rx. It is classified as a Amino acid/Protein supplement in powder form.
Is MET-Rx Protein Plus Vanilla still available for purchase?
Yes, MET-Rx Protein Plus Vanilla is currently listed as on-market in the NIH DSLD database.
What is the serving size of MET-Rx Protein Plus Vanilla?
The serving size is not specified.
What type of supplement is MET-Rx Protein Plus Vanilla?
MET-Rx Protein Plus Vanilla 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.