Researchers have found one more reason why it is important for people to eat a healthy, balanced diet. New research found that one of the amino acids, arginine, is important in the fight against infection.
Health Benefits of Arginine
Arginine has become a very popular supplement in the past several years for its heart health benefits. But this new study has found it to be even more important than what was once thought. Arginine in the body is necessary for letting the body know it is being attacked by infection.
Arginine is important for the function of macrophages, the first cells that attack infected cells at the site of an infection. Macrophages eat infected cells and leave a molecule recognized by the immune system so that other immune fighting cells arrive at the area. Without the proper levels of arginine in the system, this process will not work efficiently.
Arginine, also known as L-arginine, is also beneficial for:
- Improving circulation
- Reducing blood pressure
- Improving symptoms of clogged arteries and chest pain
- Treating erectile dysfunction
- Helping kidneys remove waste
- Healing wounds
- Maintaining a healthy immune system
- Maintaining hormone function
Foods Rich in Arginine
Eating a balanced diet is the best way to maintain arginine in the body. Foods that contain arginine include:
- Peanuts
- Almonds
- Walnuts
- Lentils
- Soybeans
- Wheat flour
- Garlic
- Salmon
- Eggs
- Milk
Does Everyone Need to Take L-Arginine Supplements?
People who eat a balanced diet, including foods rich in arginine, do not need to take additional arginine supplements. The body can actually produce its own arginine when necessary. However, eating a balanced diet is the key to maintaining healthy levels of arginine. People who are unable to eat a balanced diet may need to take L-arginine supplements.
Side-Effects of L-Arginine Supplements
Arginine should not be taken for periods longer than two months at a time unless advised by a doctor. People with asthma may experience shortness of breath while taking arginine. Arginine may interact negatively with blood pressure medications, certain heart medications and erectile dysfunction medication. Other side-effects include bloating, diarrhea, gout and abdominal pain. Pregnant or breastfeeding women should not take arginine unless advised by a doctor.
This new research is important for people in countries where fresh food is not plentiful and where sickness and infection runs rampant. The researchers hope this new information will be beneficial to people all over the world.
Sources:
Science Daily “Why Proper Nutrition is so Vital in Fighting Infection” Retrieved September 2, 2010.
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