ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2026 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
L-Citrulline

L-Citrulline

BulkSupplements.com

#Other
85
Safety90
Efficacy80
Transparency90
Based on Examine, Wikipedia, and 23 other sources

Overview

L-Citrulline is an amino acid that serves as a precursor to arginine, which increases nitric oxide production in the body. This can lead to improved blood flow, contributing to potential benefits for athletic performance, vascular health, and erectile dysfunction. While research supports these effects, the magnitude of benefits can vary.

The Good

Supports blood flow and vasodilation

May enhance athletic performance and recovery

May support healthy blood pressure

The Bad

Individual response variability

Potential for mild gastrointestinal upset at higher doses

May need to be combined with other supplements for synergistic effects

Is it for you?

Best For: Athletes, bodybuilders, individuals seeking improved cardiovascular health, those looking to enhance exercise performance

Skip If: You have low blood pressure or are on medications for blood pressure without consulting a doctor

Ingredients Analysis

L-Citrulline

3 g

How to Use

Mix recommended serving size with water or your preferred beverage. Consume 30-60 minutes before exercise or spread doses throughout the day.

Frequency:

Daily

Best Time:

Pre-workout or throughout the day

When:

On an empty stomach or with a light meal

Who Should Use This

Best For:

Athletes, bodybuilders, individuals seeking improved cardiovascular health, those looking to enhance exercise performance

Recommended Articles

Top NSF & Informed-Sport Certified Supplements

Top NSF & Informed-Sport Certified Supplements

NSF Certified for Sport and Informed-Sport certifications ensure supplement safety and efficacy for athletes.

Top Energy-Boosting Supplement Ingredients

Top Energy-Boosting Supplement Ingredients

Caffeine and natural ingredients like vitamins and plant extracts are key in energy supplements.

Best Time to Take Caffeine for Workouts

Best Time to Take Caffeine for Workouts

Consume caffeine 60 minutes before workouts at 3-6 mg/kg body weight for peak performance.

Optimal Timing for Pre-Workout Before Fasted Cardio

Optimal Timing for Pre-Workout Before Fasted Cardio

Taking pre-workout supplements 30-60 minutes before fasted cardio optimizes performance and metabolism.