Arginine, also called l-arginine, is an amino acid that is naturally produced in the human body and is available in a variety of foods. Your body uses this amino acid to make proteins, and research indicates that ingesting additional arginine in supplement form may improve immunity, boost sexual health, prevent heart disease, improve exercise performance and promote proper blood pressure regulation. Arginine has also been identified as a potential indirect antioxidant, which means that it may improve your health and well-being all across the board.
Arginine is considered to be highly soluble in water, so it absorbs into your body quickly and with high bioavailability.
Since your body naturally produces arginine, there is no nutrient reference value (NRV) for this substance. However, daily doses of up to 1200mg of arginine have been shown to be useful in clinical trials.
While arginine is relatively abundant in meat and dairy products, it can be harder for vegans to get enough of this amino acid in food.
Your body uses arginine to produce a broad variety of essential proteins. Some of these proteins regulate your immune system while others assist with wound healing or the regulation of blood flow throughout your body. According to a large body of both laboratory and clinical scientific research, it appears that exogenous (supplemental) arginine may boost your body’s ability to perform the same functions for which it uses endogenous (body-generated) arginine.
Since arginine may boost your immunity, taking this amino acid as a supplement could improve your body’s ability to defend itself against infectious disease. Arginine also appears to perform such a wide range of beneficial functions that taking arginine as a daily supplement is a smart choice whether you want to use this substance for one of the purposes listed above or just to generally improve your health.
As a water-soluble substance, arginine will absorb into your tissues rapidly. You may need to take arginine repeatedly over the course of several days, however, to start noting its full benefits.
Your body should fully absorb any arginine you ingest within approximately 24 hours.
Your body rapidly uses arginine to form proteins, so it does not remain in amino acid form for very long after it is ingested.
Some evidence suggests that arginine may operate as an indirect antioxidant by boosting the effects of other antioxidants in your body.
When taken in large doses, arginine can interfere with essential bodily processes, and in severe cases, these negative effects can become fatal.
Your body dissolves arginine to form proteins, which are then used for various bodily functions.
The arginine Feel uses is vegan, so you can consume it regardless of your dietary restrictions.
Various efforts have been made to synthesise arginine via fermentation and other methods. At present, however, it does not appear that any synthesised forms of arginine have made their way into the consumer market.
The limited number of synthetic arginine studies that have been published do not provide any indication regarding the potential bioavailability of this artificially synthesised amino acid.
Natural arginine is currently the only form of this amino acid supplement available on the market.
Arginine can be consumed in most foods that contain protein, and this amino acid is also available in supplement form.
In 2020, a study published by an international team of scientists indicated that therapy with arginine may reverse the symptoms of atherosclerosis, a cardiovascular condition that occurs when arteries narrow due to the presence of plaque. Also in 2020, a laboratory study put forth evidence that arginine may reduce airway infections, which means that this amino acid could be useful for both bacterial and viral pulmonary infections.