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 1200 mg

L-Citrulline 1200 mg

Double Wood Supplements

#Other
80
Safety85
Efficacy75
Transparency80
Based on Examine, Wikipedia, and 23 other sources

Overview

L-Citrulline is a well-regarded supplement for boosting nitric oxide levels, leading to improved blood flow, potential cardiovascular benefits, and enhanced exercise performance. While research supports these benefits, optimal dosing may require multiple servings and higher capsule consumption, and the long-term effects need further study.

The Good

Supports nitric oxide production.

Enhances vasodilation and blood flow.

May improve exercise performance and reduce fatigue.

The Bad

Potential for gastrointestinal discomfort at higher doses

Drug interactions should be considered

Insufficient long-term safety data

Is it for you?

Best For: Athletes, fitness enthusiasts, individuals seeking cardiovascular support

Skip If: You have low blood pressure or are on medications for blood pressure

Ingredients Analysis

L-Citrulline

1200 mg

How to Use

Take 1-2 capsules daily, preferably before exercise or as directed by a healthcare professional.

Frequency:

Daily

Best Time:

Pre-workout or throughout the day

When:

On an empty stomach or with light food

Who Should Use This

Best For:

Athletes, fitness enthusiasts, individuals seeking cardiovascular support

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.