L-Arginine, also known as L-Arg or a-arginine, is an amino acid. 1 This means that it is one of the 20 protein building blocks of the body 2. It is also an essential part of nitric oxide 3, a compound that plays an important role in our body. Nitric oxide helps maintain the functioning of the body's organs, as well as blood pressure regulation and a healthy immune system. 4

L-Arginine may also help with protein production 5 and can be produced by the body, 6 but it is usually found in our food supply, especially those foods that come from animals such as meat, eggs, fish, and dairy products. 7

L-Arginine has also been found to help maintain proper oxygen levels in our bodies. It is a precursor to nitric oxide, 8, which helps carry oxygen.

Can L-Arginine Help You Breath Better?

L-Arginine has many uses in the body 9, and when it comes to breathing, it does a lot. First of all, L-arginine may aid in proper circulation. 10 This means that blood can better flow to your lungs and through your body. As a result, your body may take in more oxygen. 11

In addition, L-arginine may also help relax smooth muscles, 12, which helps to keep your airways open. An open airway is needed for proper breathing. Further studies claim that it may also improve breathing in patients with respiratory illnesses requiring hospitalization such as COVID-19. 13, 14

What Else Does L-Arginine Do?

L-Arginine does a lot more than just help to breathe. Below are the top 3 benefits of L-arginine on your health.

1. It Helps Improve Heart Function

L-Arginine boosts nitric oxide in the blood, which then relaxes and widens arteries. This helps to improve and regulate your blood flow and heart function. Nitric oxide also helps to lower blood pressure by relaxing veins. 15  More oxygen means a healthier heart and better circulation.

2. It May Boost Growth In The Body

L-Arginine may help increase bone formation muscles in the body and keeps them growing. 16 This is because the amino acid aids in protein production. 17 A lot of the mass of our muscles, hair, and skin is made out of proteins, and it needs L-arginine to create these proteins. 18 So, if you are lifting weights or using dumbbells, you may take your L-arginine supplements! 19

3. May Prevent Hair Loss

Hair loss or alopecia is a common problem. 20 L-Arginine may be great because it helps the hair grow and avoid falling out by increasing blood circulation and stimulating the scalp. 21

Summary

L-Arginine is an essential amino acid for the body. It may promote the optimal functioning of our bodies and healthy lifestyles. When we supplement with L-arginine, we give our body all the help it needs to become stronger and healthier. From better circulation, muscle mass, and hair growth to better breathing and a healthier heart, L-arginine is one supplement you may consider having.