L-arginine is one of the few amino acids the body needs to function properly. Taking it as a supplement can significantly benefit the heart and muscles.
Like other amino acids, L-arginine plays a role in building protein. The body uses protein to help build muscle and rebuild tissue. It converts this amino acid into the chemical nitric oxide, which helps the blood vessels open.
Researchers have investigated the effectiveness of L-arginine in treating high blood pressure and chest pain as well as in improving breathing in patients with COVID-19 requiring hospitalization.
Keep reading to learn more about the potential therapeutic benefits of L-arginine and the research behind them.
What is L-arginine?
L-arginine is an amino acid that helps the body build protein.
It also releases nitric oxide into the blood. Nitric oxide acts to widen blood vessels in the bloodstream, which may help certain circulatory conditions.
The substance also stimulates the release of insulin into the body.
A person’s body naturally produces L-arginine under typical circumstances. People also get additional L-arginine as part of their regular diet.
Food sources, such as red meat, fish, dairy, and eggs, contain low amounts of L-arginine that can help the body replenish its necessary resources. Plant-based sources can include pumpkin seeds, soybeans, lentils, and chickpeas.
Occasionally, a person’s need for L-arginine may exceed their body’s ability to produce or consume it naturally. This is often true for older adults or people with certain medical conditions. In most cases, supplementation is the best solution to increase L-arginine in the body. Learn more about our top picks for l-arginine supplementation.
Although healthcare professionals consider L-arginine safe in moderate doses, It is also important to understand how the supplement may interact with the body and additional medications before taking it.
What are the benefits of L-arginine?
L-arginine has two effects: it turns into nitric oxide and helps the body build protein.
These effects give L-arginine an array of potential benefits, including:
- supporting heart health
- reducing chest pain
- helping build muscles
- repairing wounds
- improving male fertility
Although there are many claims about the benefits of L-arginine, not all of them have support from scientific studies.
Potential side effects of L-arginine
L-arginine has some potential side effects to consider when taking it as a supplement. Some of the more common and benign side effects can include:
- nausea
- diarrhea
- bloating
- abdominal pain
Drug interactions
Some medications and supplements may interact with L-arginine. People who take other medications or have health conditions should consult a doctor before taking it in supplement form.
