PlainVitamins

MFX PRE Watermelon Flavor

by Muscle Feast · powder · 17.64 ounces

  • On the market (NIH)
  • DSLD label 262934
  • Serving 19.6 g (2 Level 14.8cc Scoops)
  • 25 servings

MFX PRE Watermelon Flavor by Muscle Feast lists 11 ingredients, 11 with an amount per serving of 19.6 g, such as 5,500 mg of arginine alpha-ketoglutarate, 3,200 mg of CarnoSyn beta-alanine, 2,500 mg of betaine nitrate and 1,500 mg of taurine. Its current label entered the NIH Dietary Supplement Label Database on May 19, 2022.

What is in MFX PRE Watermelon Flavor?

Each row as the label prints it, per serving of 19.6 g. 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).

MFX PRE Watermelon Flavor: Supplement Facts rows against the market (DSLD label 262934, January 2026 release)
IngredientAmount% DVAmong products listing it
Arginine Alpha-Ketoglutarate5,500 mgArginine Alpha Ketoglutarate in MFX PRE Watermelon Flavor against 322 products5.5 g per serving; the middle half of products list 0.75 g to 1.99 g, the median 1 g.5.5 g

Higher than 97% of 322 products listing arginine alpha ketoglutarate (median 1 g).

CarnoSyn Beta-Alanine3,200 mgBeta-Alanine in MFX PRE Watermelon Flavor against 1,778 products3.2 g per serving; the middle half of products list 1.6 g to 3.2 g, the median 2 g.3.2 g

Higher than 66% of 1,778 products listing beta-alanine (median 2 g).

Betaine Nitrate2,500 mgBetaine Nitrate in MFX PRE Watermelon Flavor against 84 products2.5 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.2.5 g

Higher than 63% of 84 products listing betaine nitrate (median 1.5 g).

Taurine1,500 mgTaurine in MFX PRE Watermelon Flavor against 2,337 products1,500 mg per serving; the middle half of products list 110 mg to 1,000 mg, the median 500 mg.1,500 mg

Higher than 82% of 2,337 products listing taurine (median 500 mg).

Tyrosine1,500 mg200%Tyrosine in MFX PRE Watermelon Flavor against 1,680 products1,500 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.1,500 mg

Higher than 87% of 1,680 products listing tyrosine (median 500 mg).

AgmaPure1,000 mgAgmatine in MFX PRE Watermelon Flavor against 514 products1,000 mg per serving; the middle half of products list 500 mg to 1,000 mg, the median 750 mg.1,000 mg

Higher than 62% of 514 products listing agmatine (median 750 mg).

L-Alanine1,000 mgAlanine in MFX PRE Watermelon Flavor against 475 products1,000 mg per serving; the middle half of products list 100 mg to 972 mg, the median 483 mg.1,000 mg

Higher than 77% of 475 products listing alanine (median 483 mg).

Caffeine, Natural300 mgCaffeine in MFX PRE Watermelon Flavor against 3,358 products300 mg per serving; the middle half of products list 100 mg to 275 mg, the median 200 mg.300 mg

Higher than 76% of 3,358 products listing caffeine (median 200 mg).

Vitamin B3as Niacin15 mg75%Niacin in MFX PRE Watermelon Flavor against 12,413 products15 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg15 mg

71% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B6as Pyridoxine Hydrochloride15 mg750%Vitamin B6 in MFX PRE Watermelon Flavor against 15,277 products15 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg15 mg

Higher than 68% of 15,277 products listing vitamin B6 (median 6 mg).

Vitamin B12as Methylcobalamin30 mcg500%Vitamin B12 in MFX PRE Watermelon Flavor against 14,425 products30 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg30 mcg

51% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 262934 (entered May 19, 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:

  • Its 5.5 g of arginine alpha-ketoglutarate (filed by NIH under arginine alpha ketoglutarate) is higher than 97% of the 322 arginine alpha ketoglutarate products that print an amount; 2 list more.

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?

3 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: Mix two-scoops with 12-16 oz. of cold water and drink 20-30 minutes before training. We recommend that you start with half a scoop to determine tolerance. Mix 2 level scoops with 12-16 oz. of cold water.
Warnings
Keep out of reach of children.
Do not exceed the recommended dose. Consult your physician before using this product.
Do not use this product if you are pregnant or nursing. Do not use this product if you are taking any prescription medication.
Do not use this product if you are under the age of 18.
Warning: Do not use if you are currently taking nitrates for chest pain or if you are taking medications to treat erectile dysfunction such as PDE-5 inhibitors.
Warning: This product is manufactured in a GMP compliant plant that processes milk.
Allergens and what it does not contain
Gluten free Soy free Non-GMO
Allergies: None
Storage
Keep tightly closed in a cool, dry place away from sunlight.

Source: label statements in DSLD label 262934.

What else is on the label?

Other ingredients: Citric Acid, Malic Acid, Cyclic Dextrin, Natural & Artificial Watermelon flavor, Acesulfame Potassium, Sucralose, Beet.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in our GMP compliant facility Made in an FDA registered facility Certified Vegan AVA American Vegetarian Association. Listed with: Certified Vegan (Vegan Action) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does MFX PRE Watermelon Flavor have?

One label is on file, entered on May 19, 2022.

  1. Label 262934 (current) Entered May 19, 2022 · on the market · 17.64 ounces

DSLD also links this label to: MFX PRE Blue Ice Pop Flavor (flavor difference), MFX PRE Green Apple Flavor (flavor difference), MFX PRE Tangerine Flavor (flavor difference).

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

Who makes it?

The label names Muscle Feast (manufacturer), Nashport, OH. All Muscle Feast products.

Where next?