L-tryptophan, 60 capsules
- Precursor substance of niacin (vitamin B3), 5-HTP (5-hydroxytryptophan), the neurotransmitter serotonin and the hormone melatonin
| Quantity | Unit price | Base price |
|---|---|---|
| To 1 |
€24.90
|
€553.33 / 1 Kilogramm |
| To 4 |
€23.70
|
€526.67 / 1 Kilogramm |
| From 5 |
€22.50
|
€500.00 / 1 Kilogramm |
Available in 2 days, delivery time 1-4 days
An amino acid for nerves and good sleep
There are around 500 amino acids that occur in nature. 20 of these amino acids act as building blocks for protein in the human body and are known as "essential amino acids". These essential amino acids are categorised into the groups "essential", "semi-essential" and "non-essential". L-tryptophan is one of the essential amino acids, i.e. the body cannot produce it itself from other amino acids and is completely dependent on food intake to cover its daily requirements.
The tryptophan content in food is too low to be used as a basis for the production of food supplements. Tryptophan for food supplements is normally obtained through a customised fermentation process. As microorganisms are able to synthesise tryptophan themselves, this property is used in the process. The natural L-form of tryptophan is formed in the process. The bioavailability of the natural L-form can be reduced by the synthetic D-form, as it has no effect itself. D-tryptophan should therefore not be used as a supplement.
Among other things, tryptophan serves as a precursor for niacin (vitamin B3), 5-HTP (5-hydroxytryptophan), the neurotransmitter serotonin and the hormone melatonin. It can cross the blood-brain barrier, but is sensitive to competition with other amino acids. It is therefore advisable to take a tryptophan supplement on an empty stomach and separately from other amino acids.
Valuable ingredients
| Valuable substances* | per daily portion of 1 capsule |
| L-tryptophan | 400 mg |
* No reference quantity according to LMIV specified
Ingredients
L-tryptophan, anti-caking agent (rice fibres), vegetable capsule (pullulan, from fermented manioc starch).
Consumption recommendation of the manufacturer
As a food supplement for adults, take 1 capsule per day between meals (at least half an hour before or two hours after a meal) or before going to bed.
Warning from the manufacturer
Do not take in combination with medications that affect brain metabolism, such as antidepressants and tranquillisers.
Storage instructions
Store in a cool, dry place away from light (not in the refrigerator).
Legal information
The recommended daily intake must not be exceeded. Food supplements are no substitute for a balanced and varied diet and a healthy lifestyle. Store out of the reach of small children.
| Administration: | In vegan capsules. |
|---|---|
| Application: | Relaxation, Immune system |
| Product Type: | Dietary supplements |
| Quality: | Gluten-free, Lactose-free, Magnesium stearate-free |
Vitals, our new brand from 2025
We are constantly on the lookout for brands that represent our ideals: The highest quality, consistent omission of superfluous additives such as titanium dioxide or porcine gelatine, very good value for money and absolute reliability in delivery to us and therefore also to customers.
This is very difficult because such companies are extremely rare among the mass of manufacturers of food supplements that are now on the market. But we have managed to find them again, with Vitals from the Netherlands!
Manufacturer's address: Vitals Voedingssupplementen BV, Pieter Lieftinckweg 29, 1505 HX Zaandam, Netherlands. E-mail: customer service@vitals.eu.
Login