Skip to content


Enhance athletic performance, endurance, and muscle recovery with our range of L-citrulline supplements. L-citrulline is an amino acid that supports nitric oxide production, promoting healthy blood flow and oxygen delivery to working muscles. We offer a variety of L-citrulline doses and forms from trusted brands, all independently tested for purity and potency. Use our price comparison tool and quality grades to find the best L-citrulline supplement for your needs at the most competitive price.

  • The Quality Grade for this product is "NT" (Not Tested). We aim to test all the products Health Orchard offers, and will publish the Quality Testing results on each product’s page once they are available. Our goal is to empower our customers with the information they need to find safe and high-quality health supplements.
    Original price $19.99 - Original price $19.99
    Original price
    $19.99 - $19.99
    Current price $19.99
    $0.14 /g of L-Citrulline

    NOW Foods, Sports, L-Citrulline

    NOW Foods

    Description Boost workout performance with NOW Foods Sports L-Citrulline, a potent amino acid for improved endurance. L-Citrulline is an extra-stre...

    View full details

Boost Your Athletic Performance and Cardiovascular Health with L-Citrulline

L-Citrulline is a non-essential amino acid that has gained significant attention in recent years for its potential to enhance athletic performance, support cardiovascular health, and promote overall well-being. As a precursor to L-Arginine, another amino acid crucial for nitric oxide production, L-Citrulline plays a vital role in regulating blood flow, muscle function, and energy metabolism. By incorporating L-Citrulline supplements into your wellness routine, you can tap into the multifaceted benefits of this powerful amino acid and unleash your body's full potential for strength, endurance, and vitality.

The Nitric Oxide Connection: How L-Citrulline Supports Performance and Health

L-Citrulline's primary mechanism of action is its ability to increase L-Arginine levels in the body, which in turn enhances the production of nitric oxide (NO). Nitric oxide is a potent vasodilator that relaxes and widens blood vessels, improving blood flow and oxygen delivery throughout the body. This increased circulation offers several key benefits for athletic performance and overall health:

  1. Enhanced Muscle Function: Improved blood flow to working muscles during exercise can enhance nutrient and oxygen delivery, promoting muscle energy production, endurance, and power output.
  2. Reduced Fatigue: By enhancing the removal of metabolic waste products, such as lactic acid, from working muscles, L-Citrulline can help to delay fatigue and improve exercise tolerance.
  3. Cardiovascular Health: The vasodilatory effects of nitric oxide can help to support healthy blood pressure levels, reduce arterial stiffness, and promote overall cardiovascular function.
  4. Erectile Function: Adequate nitric oxide production is essential for healthy erectile function in men, and L-Citrulline supplementation has been found to support blood flow and erectile performance.

Beyond Nitric Oxide: The Additional Benefits of L-Citrulline

In addition to its role in nitric oxide production and cardiovascular health, L-Citrulline has been found to support various other aspects of health and well-being, such as:

  1. Immune Function: L-Citrulline has been shown to support immune cell function and regulate inflammation in the body, promoting overall immune health and resilience.
  2. Protein Synthesis: As an amino acid, L-Citrulline plays a role in protein synthesis and muscle growth, making it a valuable supplement for athletes and fitness enthusiasts looking to support lean body mass.
  3. Antioxidant Protection: Some studies suggest that L-Citrulline may possess antioxidant properties, helping to protect cells from oxidative stress and damage caused by free radicals.
  4. Urea Cycle Function: L-Citrulline is an intermediate in the urea cycle, a metabolic process that helps to remove ammonia from the body. Supplementation may support the efficiency of this detoxification pathway.

Choosing the Right L-Citrulline Supplement

When selecting an L-Citrulline supplement, it's essential to choose a high-quality product from a reputable brand. Look for supplements that:

  1. Provide pure, free-form L-Citrulline or Citrulline Malate (a combination of L-Citrulline and malic acid)
  2. Offer a dosage that aligns with your individual needs and goals, typically ranging from 3-6 grams per day
  3. Are manufactured in cGMP-certified facilities to ensure purity, potency, and safety
  4. Are free from unnecessary additives, fillers, and allergens

As with any new supplement, it's essential to consult with a healthcare professional before starting L-Citrulline, especially if you have a pre-existing health condition or are taking medications.

Related Vitamins and Supplements

While L-Citrulline is a powerful amino acid on its own, certain vitamins and supplements can complement its benefits and support overall health. Some relevant options to consider alongside L-Citrulline include:

  1. Beetroot Extract: This nutrient-dense superfood is a natural source of nitrates, which can further enhance nitric oxide production and complement the effects of L-Citrulline.
  2. Pycnogenol: This antioxidant-rich pine bark extract has been shown to enhance the effects of L-Arginine and L-Citrulline on nitric oxide production and blood flow.
  3. Vitamin C: This antioxidant vitamin supports healthy blood vessel function and complements L-Citrulline's role in cardiovascular health and immune function.
  4. Omega-3 Fatty Acids: These heart-healthy fats help to maintain healthy blood flow and reduce inflammation, making them a valuable addition to an L-Citrulline supplementation regimen.

Experience the Performance-Enhancing Power of L-Citrulline

At Health Orchard, we are dedicated to providing our customers with the highest quality L-Citrulline supplements to support athletic performance, cardiovascular health, and overall well-being. Our carefully curated selection features L-Citrulline products from trusted brands, formulated with pure, bioavailable ingredients for optimal efficacy and safety.

Whether you're looking to enhance muscle function, delay fatigue, support heart health, or simply promote overall vitality, our L-Citrulline supplement collection has the perfect product to meet your needs.

Witness the multifaceted power of L-Citrulline and experience the difference it can make in your journey towards optimal health and performance. Browse our selection today and take the first step towards unleashing your body's full potential with this remarkable amino acid.

Frequently Asked Questions about L-Citrulline

1. What is L-citrulline supplement good for?

L-citrulline is an amino acid that offers several potential benefits, including:

  • Enhancing exercise performance and recovery
  • Improving blood flow and cardiovascular health
  • Reducing muscle soreness and fatigue
  • Supporting erectile function and sexual health
  • Boosting immune function

L-citrulline is converted into L-arginine in the body, which then stimulates nitric oxide production, leading to improved blood flow and other benefits.

2. Is it okay to take L-citrulline every day?

L-citrulline is generally safe when taken in recommended doses, and many people take it daily for its potential health benefits. The typical daily dose ranges from 3–6 grams, depending on individual needs and goals. However, long-term use of high doses may cause side effects in some people, such as:

  • Digestive issues (nausea, diarrhea, stomach discomfort)
  • Headaches
  • Allergic reactions (rare)

It's essential to consult a healthcare professional before taking L-citrulline daily, especially if you have pre-existing health conditions or are taking medications.

3. Does L-citrulline increase testosterone?

While some studies suggest that L-citrulline may indirectly support testosterone production by improving blood flow and reducing inflammation, there is limited direct evidence to show that L-citrulline significantly increases testosterone levels. L-citrulline's primary mechanism of action is enhancing nitric oxide production, which improves blood flow and may benefit sexual function. More research is needed to fully understand the effects of L-citrulline on testosterone levels.

4. What foods are high in citrulline?

Citrulline is naturally found in several foods, with watermelon being one of the richest sources. Other foods that contain citrulline include:

  • Bitter melon
  • Squash
  • Pumpkin
  • Gourds
  • Cucumbers
  • Cantaloupe
  • Dark leafy greens (e.g., spinach, arugula)

Consuming a diet rich in these foods may help increase your natural citrulline intake. However, to obtain the higher doses used in studies and supplements, L-citrulline supplementation may be necessary.

5. What is the best source of L-citrulline?

The best source of L-citrulline depends on your individual needs and preferences. Some options include:

  • Supplements: L-citrulline is available in various forms, such as powders, capsules, and tablets. Supplements offer a convenient and concentrated source of L-citrulline.
  • Watermelon: Watermelon is one of the richest natural sources of citrulline. Eating watermelon or drinking watermelon juice can provide a natural boost in citrulline intake.
  • Other foods: Consuming a diet rich in citrulline-containing foods, such as bitter melon, squash, and dark leafy greens, can contribute to your overall citrulline intake.

When choosing a supplement, look for high-quality, third-party tested products from reputable brands. Consult a healthcare professional to determine the best source and dosage for your needs.

6. Is citrulline good for kidneys?

L-citrulline may offer potential benefits for kidney health. Some studies suggest that L-citrulline supplementation can:

  • Improve kidney function in individuals with chronic kidney disease
  • Reduce blood pressure and improve blood flow, which may support kidney health
  • Protect against kidney damage caused by oxidative stress and inflammation

However, more research is needed to fully understand the effects of L-citrulline on kidney health, particularly in individuals with pre-existing kidney conditions. If you have kidney issues, consult a healthcare professional before taking L-citrulline supplements.

7. What are the risks of taking citrulline?

L-citrulline is generally safe and well-tolerated when taken in recommended doses. However, some people may experience side effects, especially when taking high doses. Potential risks and side effects include:

  • Digestive issues (nausea, diarrhea, stomach discomfort)
  • Headaches
  • Allergic reactions (rare)
  • Interactions with certain medications (e.g., nitrates, phosphodiesterase inhibitors)

If you experience any adverse reactions, discontinue use and consult a healthcare professional. It's important to follow the recommended dosage instructions and consult a healthcare provider before starting L-citrulline supplementation, especially if you have pre-existing health conditions or are taking medications.