Many people link arginine (L-arginine) with growing taller, and hundreds search for “arginine for height” every month. So what is arginine, how is it related to growth hormone, and what do studies actually say? Here is a clear, honest explanation.
What is arginine?
Arginine is an amino acid, one of the building blocks of protein. The body normally makes it on its own, so it is classed as “semi-essential”, though needs can rise during periods of rapid growth or stress. Arginine is used to make nitric oxide, which helps widen blood vessels, and it is involved in protein synthesis and in clearing ammonia from the body.
How is arginine linked to growth hormone?
It is well known in medicine that arginine given intravenously stimulates growth hormone release, which is why it is used in hospitals as one of the tests for diagnosing growth hormone deficiency. Some studies have also shown that large oral doses of arginine can temporarily raise growth hormone levels in some people.
But it is important to separate two things:
- A temporary rise in growth hormone after a large dose, which some studies have observed.
- An actual increase in final height, which studies have not shown in healthy children and teenagers.
In other words, there is not enough scientific evidence that taking arginine as a supplement makes a person taller than their genetic height. Anyone who promises that is exaggerating.
So why is arginine found in growth supplements?
Because it is an amino acid the body needs for protein synthesis, and during the growing years the body builds muscle and tissue at a high rate. Some formulas therefore combine it with other amino acids, minerals and vitamins that have known roles in normal growth, such as zinc, which contributes to normal protein synthesis and the maintenance of normal bones.
Food sources of arginine
Most people get enough arginine from food: meat, chicken and fish, eggs and dairy, nuts (especially peanuts, almonds and walnuts), seeds such as pumpkin and sesame, and legumes such as chickpeas, lentils and soy.
Is arginine safe?
At the levels found in food and in licensed food supplements, it is considered safe for most people. Very large doses can cause stomach upset or diarrhoea. Talk to a doctor before using it if you have heart disease, low blood pressure or kidney disease, take blood-pressure or heart medicines, or are pregnant or breastfeeding.
Where does Nutrond Numotam fit in?
Nutrond Numotam is a food supplement that combines amino acids (L-arginine, L-ornithine and L-glutamine) with phosphatidylserine, zinc, magnesium and vitamin B6, in one capsule a day for ages 11 and up.
- Zinc contributes to normal protein synthesis and to the maintenance of normal bones.
- Magnesium contributes to normal muscle function and to the reduction of tiredness and fatigue.
- Vitamin B6 contributes to normal energy-yielding metabolism.
Numotam does not treat short stature and does not guarantee any increase in height. It can be one part of a complete nutrition routine that supports the body’s needs during the growing years, alongside a balanced diet, enough sleep and regular activity. Learn more about Numotam and its ingredients.
In Numotam, arginine is part of a complete nutritional formula at food-supplement level (about 411 mg of L-arginine per capsule), not a therapeutic dose. The aim is to support daily nutrition, not to stimulate hormones.
Summary
- Arginine is an amino acid important for protein synthesis, and most of it comes from food.
- Given intravenously it stimulates growth hormone; as an oral supplement there is no evidence it increases final height.
- The key growth factors remain enough food, sleep, exercise and good general health. Read our guide to increasing height naturally and Height growth pills: the truth.
Note: this article is for general education and does not replace medical advice. Final adult height is largely determined by genetics, and no supplement can guarantee an increase in height. If you are worried about your child’s growth, talk to a paediatrician or an endocrinologist. Food supplements are not medicines and do not replace a balanced diet.

