





Now L-Arginine comes in extra strength 1,000 mg tablets and is non-GMO. Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production. It is an important precursor of nitric oxide (NO) and thus plays a role in the dilation of blood vessels. The L-Arginine used in this product is pharmaceutical grade. Natural color variation may occur in this product.
Is Discontinued By Manufacturer : No
Product Dimensions : 2.7 x 2.7 x 4.75 inches; 3.53 ounces
Item model number : 0035
Department : Health and Beauty>Health and Wellness
Date First Available : January 8, 2004
Manufacturer : NOW Sports – Nutrition and Wellness
ASIN : B0013OVX3U
Best Sellers Rank: #3,628 in Health & Household (See Top 100 in Health & Household) #4 in L-Arginine Nutritional Supplements #461 in Sales & Deals
Customer Reviews: 4.5 4.5 out of 5 stars 14,340 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
DOUBLE STRENGTH L-ARGININE: NOW offers this non-GMO, double strength L-Arginine supplement in 1,000 mg tablets.
NITRIC OXIDE PRECURSOR: Arginine plays an important role in the dilation of blood vessels.
CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Soy Free
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
Packaged in the USA by a family owned and operated company since 1968.
13 reviews for NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets
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$17.29

Jong Chon –
Effective Supplement for Energy and Circulation Support
NOW Foods L-Arginine 1,000 mg is a great supplement that helps support blood flow and energy levels. I take it before workouts, and I’ve noticed a real boost in my endurance and performance. The tablets are easy to swallow, and I like that the formula is simple and clean without unnecessary fillers. As a nitric oxide precursor, it really helps with circulation and recovery. The bottle comes with 120 tablets, which lasts a good amount of time and makes it a solid value. Overall, this is a reliable and effective supplement for anyone looking to enhance their workout or support overall cardiovascular health.
JH –
Good quality and noticeable effects
I’ve been taking this L-Arginine supplement for several years now. The capsules are easy to swallow, and I’ve noticed it helps with my energy and workout recovery. It doesn’t upset my stomach or have any unpleasant aftertaste. Definitely a product I trust and keep coming back to.
Charles C Hennings –
excellent product, terrible taste
it works well but the taste is awful. It doesn’t say if I’m supposed to chew it up or swallow it whole. I’ve been crushing them into my preworkout or juice to hide the flavor.
Ram –
Glad to have got my drive back.
I admit I was a skeptic at first. However, with regular use, this product has genuinely worked wonders for me. Am 40- I had been experiencing a decline in libido and, more frustratingly, an inability to maintain performance for a satisfactory duration. After incorporating just one tablet daily into my routine, my libido has undeniably increased. What’s truly remarkable is the noticeable improvement in girth and overall performance I’ve observed over the last three months. This has elevated our intimate experiences, and my wife and I are both very pleased with the newfound consistency.I have been using this over the past 4 to 5 months- saw the difference after around 2 months of regular usage. The tablet is indeed large to swallow but if one pops it in vertically, it’s easy to swallow with water.
ClassicalEduMom –
Controls migraines and BP (surprised!)
This was originally purchased because it helps control pain when coping with oxalate issues. The tablets are large and I was hesitant to use them at first after reading about the “gentleman’s” preferred use. But desperation kicked in and I finally tried it when the migraines and back/nerve pain were escalating.I use it to control pain from oxalates are leaving the body (old injury sites tend to hurt more when this happens) and despite my research, I still cannot explain why this helps but it’s much more effective than taking OTC pain meds.The biggest surprise was learning it controlled early migraine symptoms better than my prescription medication. One arginine tablet and my migraine is gone and NO SIDE EFFECTS! Amazing! Arginine affects blood vessels so if you take medication for this, you will need to use more judgement and speak to your pharmacist for interactions.The biggest surprise was my roommate took arginine for her migraine, her high blood pressure came down gently (and with greater efficiency than her new prescription). So I reviewed the research for a third time and found out why it works for BP. She started monitoring BP closely and found her migraines and BP both reduced with the arginine. This surprised us and she spoke to her MD. She too experienced improved migraine relief compared to her standard prescription which she relies more on (whereas I now use CoQ10 to control chronic migraine). So arginine may be enhancing other meds more than working as a stand-alone relief. Talk to your doc or pharmacist.
Marty Wood –
Good value, but not safe for swallowing
I’ve been taking these for a couple years before my workout, but almost choked to death on one recently. These are challenging to swallow because they are chalky (traction to your throat instead of glide) and large. I’m going to switch back to the regular capsules after a scare
V. Althouse –
This stuff is great! Really helps
This stuff is great. For some reason, my gait is less stiff and I am able to move more quickly. I have greater endurance, even if I feel tired.
JJ –
Holy Hardness Batman!
Well my friends. I had heard good things about L-Arginine with regards to, ya know, stiffening things up a bit. Of course, I was more than a bit skeptical. I am 45 years old, and Herbie still loves to get up and dance, but as of late he seems to not want to dance as long as I do. He would bust out of the gate like Secretariat, but didn’t want to keep that stride for the entire race. I tried to reason with him and I took a firm stance. He, however, took a slightly softer stance. We have debated and sometimes, if the mood is right, Herbie would comply for a bit longer. Normally he gets the job done, and my girlfriend was fine with everything. NOT ME. I wanted 25 year old Herbie like he was glistening out of the showroom. I wanted him to run a Daytona 500, not a 10 lap coast which slowly came down to idle. I have Viagra which I will use on occasion if I really wanna go for hours and walk around with a baseball bat that can be used during a home run derby. But I do not like the headaches, flush face, and stuffed up nose that would accompany it. ENTER THIS CRAZY STUFF. I have been taking 2 tablets a day for a week. One in the morning, one before bed. No joke, by day 3 Herbie was acting like he just had a tune up, lube job (haha), and a new set of tires. This is not a testimonial written by the company or some employee. I am just like you. This is legit. I have had more sex this week with my girlfriend than in recent memory. I no longer worry about when he will decide to slow down and pull off to the shoulder leaving me looking like a lost puppy hoping for a tow. He just wants to keep going and I feel like I took Viagra, but without the side effects! Yesterday? We went at it 3 times. All 3 times, completed the race the way he started. These aren’t sprints. We are talking 45+ minute cruises down the interstate. Needless to say, I am ecstatic with the product and highly recommend it to any others who have a little buddy that seems to want to putter out after a quick drive around the block. TRY THIS STUFF. You and your Herbie will thank me. **Disclaimer- Could this all be in my head? Placebo effect? Maybe? But I honestly don’t think so. My girlfriend doesn’t think so. I know what Viagra feels like, and this is similar. At least for me. Good luck!
Akshat –
Best best bestI have used different brands of L-Arginine like GNC,GAT,MB etc with 2 capsules once a time but this is something crazy now foods L-ARGINING is best i would say just 1 capsule made my whole workout easy with heavy lifting. Please buy it blindly
Roger –
Its a good, essential protein and it is effective as the content described. My arms become more stronger after taking this. Size of the tablet is big and its taste is okay, not at all bad like many described. I am taking two to three tablet daily, mostly two. You need to take 10 to 14 days to see the effect. I am not sure about the sexual benefits, may be it has some impact. This tablets along with other protein supplements are pretty good for gym. I have read some bad review as well because there is always exceptions, you may fall under that category so always buy less or combined purchase and test them. I am satisfied with the product.
まっし~ –
錠が大きいので慣れるまで飲みこみにくいですが、飲み続ければアルギニンとしての効果を実感できます。
Sam Wan –
Bad Memory;Before I took this suplement, I memory is very bad, I cannot memorize 2 or more digit numbers, just bad, When I took it, I notice my memory is getting better, I am able to memorize numbers again.As to down under, yes, it works too, I notice its different.Strenght – it also gave me enough strengt.What are we talking about here? lol!
Luis Arriaga –
Buen precio, llego en la fecha indicada