Arginine Supplements

Arginine is an important amino acid that is essential for a healthy circulatory system and blood flow around the body. It is considered a semi-essential amino acid to adults, but is essential for children's growth and development. Your body takes the arginine it needs from your diet, so having an arginine deficiency is rare, but in some people, a deficiency can occur as a result of stress or a low-protein diet. Shop our selection of arginine supplements here.

HealthAid L-Arginine 500mg tablets 60
Special Price £10.39 Regular Price £12.99
HealthAid L-Arginine with L-Ornithine 300mg tablets 60
Special Price £13.59 Regular Price £16.99
Lamberts L-Arginine HCI 1000mg Tablets 90
Special Price £17.56 Regular Price £21.95
Solgar L-Arginine 1000mg Tablets 90
Special Price £20.99 Regular Price £27.99
Nature's Aid Active Man Tablets 60
Special Price £8.21 Regular Price £10.95
Solaray L-Arginine 500mg Capsules 100
Special Price £13.51 Regular Price £16.89
Lindens L-Arginine 500mg Capsules 90
£8.99
Jarrow Formulas Arginine 1000mg Tabs 100
£20.06
Life Extension Arginine Ornithine Powder 150g
£25.16
Pure Encapsulations l-Arginine Capsules 90
£30.00
Doctor's Best Fast Acting Arginine Complex with Nitrosigine 750mg Tabs 60
£38.96
Doctor's Best L-Arginine Sustained + Immediate Release 500mg Tabs 120
£30.07
Doctor's Best Pure L-Arginine Powder 300g
£28.25
NOW Foods L-Arginine 1000mg Tablets 120
£26.63
NOW Foods L-Arginine 500mg Capsules 250
£23.69
NOW Foods L-Arginine 700mg Capsules 180
£24.68
NOW Foods L-Arginine Pure Powder 454g
£35.97
Solgar L-Arginine 500mg Vegicaps 50
Special Price £8.63 Regular Price £11.50

Out of stock
Nature's Aid L-Arginine HCl 750mg Tablets 90
Special Price £10.46 Regular Price £13.95

Out of stock
Jarrow Formulas Arginine-Citrulline Sustain Tabs 120
£28.35

Out of stock
Life Extension L-Arginine 700mg Vegicaps 200
£27.43

Out of stock

All you need to know about Arginine

What does arginine do in the body?

Arginine is an amino acid that is responsible for creating nitric oxide – a substance that widens blood vessels and relaxes arteries, improving blood flow around the body. It also helps us to heal after injury, helps the kidneys to excrete waste, and generally aids the immune system. Those with heart disease and angina may take arginine supplements to ease their conditions. Arginine is also believed to improve problems with erectile dysfunction.

Which foods are high in arginine?

Your body gets arginine from high-protein foods including turkey, pork and chicken. It can also be found in pumpkin seeds, soybeans, peanuts, spirulina; dairy products like milk, cheese and yogurt, and chickpeas and lentils.

How much arginine should I take daily?

It is important to consult your doctor before taking any supplements or changing your diet. There isn't an exact recommended daily amount for arginine, as your body should naturally make up the amount that it requires from your diet. If however you are on a low-protein diet, this could be difficult and a supplement of up to 1200mg every day may be required.

What are the side effects of arginine supplements?

Arginine supplements have been proven safe in clinical trials, but some side effects may occur. These include abdominal cramps, bloating and gas, loose stools and worsening of asthma symptoms (if you have this condition). If you are on medication to lower blood pressure, arginine may interact with this. It can also interact with Viagra, so consult your doctor if you are on medications for erectile dysfunction.