Jarow FormulasL-Arginine is an amino acid that plays an important role in several important pathways, including the synthesis of proteins, the production of creatine phosphate (needed to produce ATP) and the synthesis of nitric oxide, a secondary messenger involved in blood flow.
who can benefit from L-Arginine?
Those seeking to support protein synthesis, production of nitric oxide, and creatine phosphate to produce ATP, may benefit from using L-Arginine.
what distinguishes L-Arginine?
• reduces muscle fatigue
• supports Nitric Ocide and protein synthesis
• more NO production leads to more muscle growth as NO stimulates protein synthesis.
First isolated from a lupine seedling and characterized in 1886, L-arginine is one of the twenty typical α-amino acids used as building blocks for protein. As such, it is present in a wide variety of foods of both plant and animal origin with particularly high levels found in eggs, almonds, spinach, and lobster.
L-arginine is considered to be conditionally essential, meaning that for most adults adequate levels of arginine can be obtained from the diet or through biosynthesis/recycling. However, during growth and other times when positive nitrogen balance is required, such as during healing, diet and biosynthesis may not meet arginine needs, since the rate of biosynthesis does not compensate for depletion or inadequate supply. In addition, research evaluating the effects of arginine on the structure and function of the body often utilizes serving sizes in the multi-gram range, which may be difficult to achieve with food alone.
L-arginine possesses the highest nitrogen density of any of the 20 typical α-amino acids, a factor important for protein synthesis. Much of the nitrogen comes from the guanidinium group that sits at the end of arginine’s side-chain. The positive charge of this group imparts unique activity to active site enzymes and often leads to arginine being found on the outside of proteins where it can form hydrogen bonds with the external aqueous environment.
Nitric Oxide (NO)
Aside from incorporation into proteins, one of the primary functions of L-arginine is as a precursor to nitric oxide (NO). Nitric oxide synthase (NOS) generates NO from L-arginine, producing citrulline as a byproduct. The recycling of citrulline back to L-arginine is possible via the citrulline-arginine pathway, but it is an energy intensive and inefficient process that the body does not rely on for its arginine needs.
NO is a critical mediator of vascular regulation, immune activity, and endocrine function. When it comes to the cardiovascular system, this gaseous messenger has a number of effects. It is necessary for endothelium-dependent vasodilation, allowing blood vessels to relax and widen. As such, the role of NO in maintaining healthy blood pressure has been studied in depth. In addition, NO also modulates platelet aggregation and the inflammatory response.
Creatine helps to supply energy to all cells in the body, primarily muscle. However, it is not an essential nutrient because it can be produced in the body from L-arginine, glycine, and L-methionine. The first step of creatine biosynthesis is carried out by arginine:glycine amidinotransferase. Thus, the use of arginine as a precursor to creatine is part of the allure to athletes, but arginine administration also has been observed to stimulate the release of growth hormone.
The mechanism by which this could occur is unknown but may be interwoven with the effect of arginine on creatine regulation.
Immune function and repair
L-arginine has been found to affect levels of a number of immune modulators and cell adhesion molecules. This coupled with effects on inflammatory balance and tissue generation, makes it understandable how arginine can be an important supporter of normal healing. It appears that tissue injury, particularly of the skin, causes an increase in arginine oxidation and can deplete reserves.
Jarrow Formulas’ Arginine is made with pharmaceutical grade L-arginine hydrochloride. L-Arginine is an amino acid that plays a role in several important pathways, including the synthesis of proteins, the production of creatine phosphate needed to produce ATP, and the synthesis of nitric oxide, a secondary messenger involved in blood flow.
Some supplements are suitable for both men and women of all ages as well as children. But other supplements are specifically targeted to the aging woman or man. Another supplement is especially suitable for athletes, regardless of gender.
- 9+ items = -20%
- any 2+ = -2.5%!
- any 3+ = -5%!
- any 4+ = -7.5%!
- any 5+ = -10%!
- any 6+ = -12.5%!
- any 7+ = -15%!
- any 9+ = -20%!
- in stock
- €3,75+ (NL) - €7,50+ (EU) - €17+ (world)
- quantity discount is valid for any combination of products
- free shipping >€30 (NL) or €5 discount >€30 (EU)
- keep out of reach of young children
- a dietary supplement is not a subsitute for a healthy diet ; do not exceed recommended dose
- if you have a medical condition, are pregnant, lactating or trying to conceive, are under age of 18, or are taking medications, consult your health care practitioner before using this product.
- books, probiotics and products bought in the SALE can NOT be returned
Influence of the moon on our behaviour
For the longest time, people have felt the influence of the (full) moon on their behaviour.
Especially on cloudless nights, many of us feel an urge to go outside and enjoy watching the full moon. Some will even go so far that they will go on a nightly hike or bike ride.
If this urge still persists today, how influential must the moon it have been in the past when we only could rely on light of the sun, moon and fire?
This is why so many people believe how lunar cycles can and do influence many other aspects of our behaviour and health.
The most persistent one is about its influence on menstruation cycles, fertility and even on the gender of babies. It's not too difficult to understand where this belief comes from: after all, a lunar cycle is almost as long as the average menstruation cycle.
However, until recently, scientists haven't been able to confirm most of the claims.
Only a short while ago it was confirmed how indeed, the full moon does have an impact on the length of our sleep. Even those who live in an urbanized environment, feel the effect of the full moon on their sleep cycle, even though it is far less pronounced than for indigenous people living without artificial light.
About time to explore whether the moon cycle really affects other aspects of our health and/or behaviour.
Tips and tricks to keep your house cool without airconditioning
After having survived the hottest two weeks of the past century, and hearing about the deliberate choice to switch of the power in some areas of California as it became impossible to match the demand for electricity, due to the massive use of airconditioning, this week's topic had to be about how to keep your house and yourself cool without needing to rely on energy-guzzling airconditioning.
How to make better food and lifestyle choices
Blood flow and vasodilationVasodilation is the process by which the blood vessels in the body relax and widen, allowing for greater blood flow. One of the main triggers of vasodilation is nitric oxide (NO).
Therefore, anything that increases nitric oxide production in the body will also increase vasodilation.
Wat is citrulline?Citrulline dat verkwikkend werkt op de spieren, lichamelijk welbevinden en dus op het prestatievermogen. Citrulline is zowel een precursor voor de essentiële aminozuren arginine en ornithine en daardoor een precursor voor stikstof (NO), wat inwerkt op zowel de geslachtsorganen als op die spieren, waar het helpt bij de afvoer van melkzuur en de spieren gevoeliger maakt voor het spieropbouwende / spierherstellende hormoon testosteron.
take 2 tablets with water or fruit juice 30 minutes before a training or competition
take 2 tablets on an empty stomach with water or fruit juice
enhanced libido for men and women
take 1-3 tablets with water or fruit juice before intercourse
contains per daily serving (1 tablet)
L-arginine (from L-arginine HCl) 1000mg †
† = Recommended Daily Intake not established
active ingredient (L-arginine), filler (cellulose, vegetable stearic acid and magnesium stearate), anticoagulant (silicon dioxide) and food grade coating
keep dry and closed at normal room temperature
keep out of reach of young children
NOTE: If you have a medical condition (especially hypotension or herpes), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially for blood pressure), consult your health care practitioner before using this product.
contains no familiar allergens (wheat, gluten, soy, lupin, nuts, tree nuts, celery, mustard, sesame seeds, dairy, egg, fish/shellfish or mollusks)
suitable for vegetarians and vegans