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Gainful Pre-Workout Sour Watermelon

product on market Powder G Gainful Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 38% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

L-citrulline DL-malate and beta-alanine are supported by strong evidence for improving exercise performance and delaying muscle fatigue. Leucine and isoleucine are branched-chain amino acids that contribute to muscle protein synthesis. Together, these ingredients target endurance and recovery through well-documented metabolic pathways.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Gainful Pre-Workout Sour Watermelon
Open Full PDF View on NIH DSLD →
Details

Label Data

10 Gram(s)
Serving Size
14
Servings
Other Combinations
Product Type
38%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
Market median: 2000.0mg (275 products)
2000 mg
Market median: 1500.0mg (104 products) 21 studies (A:0, B:2)
1000 mg
Market median: 17.4mg (161 products)
500 mg
Market median: 17.4mg (161 products)
Valine
500 mg
250 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)
Market median: 180.0mg (239 products) 49 studies (A:1, B:19)

Other Ingredients

natural Watermelon flavor organic Stevia extract Beet powder
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Additional Information

Follow us @Gainful

Metadata

Product Details

DSLD Entry Date2021-07-27
Product TypeOther Combinations
FormPowder
DSLD ID252036
Data Updated2026-04-11
Research

Research Evidence

12
Research Sources
45
Avg Quality
6
Rct
5
Clinical Trial
1
Meta Analysis
C Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials
Meta Analysis Journal of the International Society of Sports Nutrition 2021 PubMed DOI
C Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.
Rct Nutrients PubMed DOI
C Effects of Acute Citrulline Malate Supplementation on CrossFit® Exercise Performance: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Study.
Rct Nutrients PubMed DOI
C Impact of L-Citrulline Supplementation and HIIT on Lipid Profile, Arterial Stiffness, and Fat Mass in Obese Adolescents with Metabolic-Dysfunction-Associated Fatty Liver Disease: A Randomized Clinical Trial.
Rct Nutrients PubMed DOI
C Effect of L-Citrulline Supplementation on NAFLD in Adolescents With Obesity
Clinical Trial ClinicalTrials.gov 2021
C Effects of L-Citrulline or Citrulline-malate on Neuromuscular Performance in Resistance-trained Adults
Clinical Trial ClinicalTrials.gov 2022
C Acute effects of Nitrosigine® and citrulline malate on vasodilation in young adults.
Rct Journal of the International Society of Sports Nutrition PubMed DOI
C Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.
Rct International journal of sports physiology and performance PubMed DOI
C Acute effects of combined supplementation of L-arginine and citrulline malate on aerobic, anaerobic, and CrossFit exercise performance.
Rct Scientific reports PubMed DOI
C L-Citrulline in Peripheral Artery Disease
Clinical Trial ClinicalTrials.gov 2016
View all evidence for Citrulline →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.