If you’re looking for ways to lower blood pressure, l-arginine may be able to help. Learn how l-arginine and blood pressure work together.
L-arginine is a semi-essential amino acid that serves a variety of functions. Semi-essential (or conditional) amino acids are naturally available in the body except under certain conditions like illness, pregnancy, or age.
One of the best benefits of l-arginine is the key role it plays in nitric oxide production, a molecule that affects circulation. Moreover, the amino acid serves as a precursor to other amino acids that are necessary for a functioning immune system.
Due to the multiple functions it serves, having a deficiency in l-arginine can result in adverse consequences for overall health. In addition to the body producing it on its own, l-arginine is available through dietary intake.
However, if the body is not producing enough on its own, one of the best ways to obtain l-arginine is through supplementation. L-arginine supplements are available in a variety of forms and may even help with blood pressure.
L-arginine Benefits
Supplements can help a variety of people – from those with high blood pressure to athletes that need a boost in their performance. Furthermore, l-arginine supplements are part of treatments in clinical settings to help those who are critically ill or have wounds.
According to research, l-arginine may offer a variety of benefits as a supplement. Still, some benefits have more scientific backing than others, so it’s important to make the distinction between proven and potential benefits.
L-arginine and Blood Pressure

High blood pressure (or hypertension) affects millions of people and is one of the leading factors behind heart disease. Fortunately, l-arginine supplements may be able to help people experiencing high blood pressure.
According to studies, these supplements may help decrease overall blood pressure levels. L-arginine is necessary for the production of nitric oxide, a molecule that dilates blood vessels and improves blood flow.
In a 2016 review of 7 studies, researchers found that l-arginine supplementation through both oral and intravenous methods were helpful. Moreover, they found that systolic blood pressure in adults decreased by up to 5.4 mm/Hg and diastolic by up to 3.1 mm/Hg.
L-arginine Supplements
There are a variety of l-arginine supplements available, so it’s important to do your research. When finding the right supplement for your needs, consider the ingredients and if they have effective doses.
For example, L-arginine Plus contains 5,110 mg of l-arginine along with 1,010 mg of l-citrulline and key vitamins and minerals. Together, they work to effectively promote nitric oxide production and increase circulation and blood flow.
The Outlook
If you have high blood pressure, l-arginine supplementation may help decrease blood pressure levels. Various studies point to the benefits of l-arginine and it is even used in clinical settings.
Consider adding oral supplements to your routine like L-arginine Plus to help improve circulation. However, if you’re taking blood pressure medication, consult with your doctor to avoid side effects like your blood pressure decreasing too much.