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Amino acids and proteins

What function do amino acids perform in the body? Amino acids are molecules that contain a carboxyl group; as components of proteins, they play a critical role in metabolism, and structure and function of cells. There are around 500 known amino acids but only around 20 build proteins. Nine of these are termed ‘essential’ since they cannot be produced by the body and must be ingested from foods in our diet. Other amino acids (notably arginine and cysteine) may also be considered ‘essential’, depending on an individual’s age, state of health or diet.

Amino acids can also be important biosynthesis precursors and play a crucial role in the physiology of many processes related to health (sleep, fertility, physical activity, muscle-building ...). That is why they are so widely used in dietary supplements.

Why You Should Consider Natural Amino Acid Supplements from Supersmart

Most of the natural amino acids in the human body have a levorotatory structure which is why many have an ‘L’ in front of their name (l-carnitine or l-tryptophan for example) as opposed to a ‘D’ which signifies a dextrorotary structure. The molecules offered by Supersmart in our amino acid supplements (sulphur-containing amino acids, branched-chain amino acids (BCAAs), proline, carnitine …) are all natural-source.


Supports Serotonin synthesis Griffonia Simplicifolia extract

26.00 €(28.17 US$)
5 39 reviews
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Acetyl L Carnitine ArginateAcetyl L Carnitine Arginate

Superior molecular combination of acetyl-l-carnitine and l-arginine

44.00 €(47.67 US$)
5 12 reviews
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Arginine Alpha Ketoglutarate (AAKG)Arginine Alpha Ketoglutarate (AAKG)

Improved form of arginine with higher bioavailability

34.00 €(36.83 US$)
4.5 11 reviews
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The three branched-chain amino acids in the ideal ratio of 2:1:1.

22.00 €(23.83 US$)
5 9 reviews
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Bone Morphogenetic ProteinsBone Morphogenetic Proteins

Cyplexinol® For complete regeneration of the osteo-articular system

67.00 €(72.59 US$)
4.5 23 reviews
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Powerful, multi-benefit proteolytic enzyme. Now in DR Caps™. New acid-resistant delivery method.

48.00 €(52.00 US$)
5 10 reviews
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An innovative form of carnosine for combatting glycation

39.00 €(42.25 US$)
5 4 reviews
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Natural antiaging amino acid helps prevent glycation

36.85 €67.00 €(39.92 US$)
4.5 20 reviews
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A natural enzyme for increased longevity

32.00 €(34.67 US$)
4.5 21 reviews
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Chondroitin Sulfate 95%Chondroitin Sulfate 95%

More effective in association with glucosamine

49.00 €(53.08 US$)
5 11 reviews
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Digestive EnzymesDigestive Enzymes

Ultra-powerful, all-inclusive digestive formulation.

34.00 €(36.83 US$)
5 31 reviews
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Slows the decline in brain and cognitive function

19.00 €(20.58 US$)
4.5 9 reviews
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Natural formulation for fighting hair loss

54.00 €(58.50 US$)
5 1 reviews
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L-Carnitine FormulaL-Carnitine Formula

Key role in production of cellular energy

24.00 €(26.00 US$)
5 4 reviews
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Natural L-citrulline supplement to support physical activity

29.00 €(31.42 US$)
5 6 reviews
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Essential for protein synthesis, pharmaceutical grade

22.00 €(23.83 US$)
4.5 12 reviews
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Lp(a) chelator. Pharmaceutical grade.

29.00 €(31.42 US$)
5 3 reviews
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L-Proline 500 mgL-Proline 500 mg

Collagen precursor and chelator of Lp(a), the main constituent of atherosclerotic plaque

39.00 €(42.25 US$)
5 1 reviews
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Essential amino acid and precursor of serotonin, melatonin and niacin.

39.00 €(42.25 US$)
5 36 reviews
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One of the most active components of colostrum (the first form of breast milk)

38.35 €59.00 €(41.55 US$)
5 11 reviews
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Marine CollagenMarine Collagen

To fight the signs of skin ageing and improve joint health

22.00 €(23.83 US$)
5 29 reviews
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N-Acetyl CysteineN-Acetyl Cysteine

The most effective and immediate precursor of glutathione

26.00 €(28.17 US$)
5 50 reviews
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N-Acetyl L-TyrosineN-Acetyl L-Tyrosine

Rapidly converted into noradrenaline and dopamine

22.00 €(23.83 US$)
5 15 reviews
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Japanese fibrinolytic enzyme for reducing cardiovascular risk

39.00 €(42.25 US$)
5 12 reviews
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Ornithine Alpha Ketoglutarate (OKG)Ornithine Alpha Ketoglutarate (OKG)

Improved form of ornithine with higher bioavailability

42.00 €(45.50 US$)
4 1 reviews
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Improves digestion and absorption of nutrients.

36.00 €(39.00 US$)
5 5 reviews
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Effective relief for stress-related fatigue, anxiety and depression.

33.00 €(35.75 US$)
4 3 reviews
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Double dose : 60,000 IU of serratia peptidase per capsule. Now in gastroresistant DR caps™

39.00 €(42.25 US$)
5 33 reviews
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Systemic EnzymesSystemic Enzymes

The body’s first line of defence against inflammation, with numerous health benefits

46.00 €(49.83 US$)
5 7 reviews
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Methylates toxic homocysteine into methionine.

24.00 €(26.00 US$)
3.5 4 reviews
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Powerful antioxidant

18.00 €(19.50 US$)
5 8 reviews
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Carnitine, arginine and tryptophan: why are they so popular in amino acid food supplements?

Carnitine is an amino acid produced by the body from lysine and methionine. It plays an important role in transporting fatty acids into mitochondria. As this process enables energy to be produced from ATP, carnitine is considered essential for healthy muscle function.

The body is able to synthesise carnitine from food; rich sources include meat, especially red meat, dairy products, avocadoes and the soy product, tempeh. Though carnitine deficiency is uncommon, some people gain a variety of benefits from supplementation through the ingestion of natural amino acid supplements. Studies have shown that carnitine actually reduces muscle stress following exercise and increases sperm quantity and motility. Carnitine also has antioxidant properties.

Arginine is one of the 20 amino acids which builds proteins in the body. It is involved in various functions such as cell division, wound-healing, the immune system and muscle function.

Arginine is considered a ‘semi-essential’ amino acid because our bodies make enough for our needs. Nevertheless, serious infection and trauma can increase these requirements.

Which foods contain arginine?

Arginine is found in many foods such as pulses, red meat and nuts, in addition to amino acid food supplements. Studies have demonstrated that at certain doses, arginine improved erections, increased stamina and optimised immune response.

Ornithine is a non-essential amino acid produced from arginine. It is traditionally used to increase sports and athletic performance though studies appear to have produced inconsistent results.

Tryptophan (or l-trypophan) is an essential amino acid found in both plant and animal protein. A valuable dietary supplement, it has sedative effects, helps smokers quit, and is believed to help with insomnia and depression.

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