L-Tryptophan, 60 capsules
- A precursor of niacin (vitamin B3), 5-HTP (5-hydroxytryptophan), the neurotransmitter serotonin and the hormone melatonin
| Quantity | Unit price | Base price |
|---|---|---|
| To 1 |
€24.95
|
€554.44 / 1 Kilogramm |
| To 4 |
€23.70
|
€526.67 / 1 Kilogramm |
| From 5 |
€22.45
|
€498.89 / 1 Kilogramm |
(UVP: €24.95)
Available in 2 days, delivery time 1-4 days
An amino acid for the nerves and a good night’s sleep
There are around 500 amino acids found in nature. Twenty of these amino acids act as building blocks for protein in the human body and are referred to as ‘essential amino acids’. These essential amino acids are classified into the groups ‘essential’, ‘semi-essential’ and ‘non-essential’. L-tryptophan is one of the essential amino acids, meaning that the body cannot produce it itself from other amino acids and is entirely dependent on dietary intake to meet 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 usually obtained through a bespoke fermentation process. As microorganisms are capable of synthesising tryptophan themselves, this property is utilised in the process. The natural L-form of tryptophan is The natural L-form of tryptophan is produced in this way. The bioavailability of the natural L-form can be reduced by the synthetic D-form, as the latter has no effect of its own. D-tryptophan should therefore not be used as a dietary 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 from other amino acids. It is therefore advisable to take a tryptophan supplement on an empty stomach and separately from other amino acids.
Key ingredients
| Active ingredients* | per daily dose of 1 capsule |
| L-tryptophan | 400 mg |
* No reference amount specified under the Food Information Regulation (LMIV)
Ingredients
L-tryptophan, anti-caking agent (rice fibre), vegetable capsule (pullulan, from fermented cassava starch).
Manufacturer’s recommended intake
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.
Manufacturer’s warning
Do not take in combination with medicines that
affect brain metabolism, such as antidepressants
and sedatives.
Storage instructions
Store in a cool, dry place, away from light (not in the fridge).
Legal information
Do not exceed the recommended daily intake. Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of the reach of young children. Store out of the reach of young children.
| Administration: | In vegan capsules. |
|---|---|
| Application: | Relaxation, Immune system |
| Plants: | Reis |
| Product Type: | Dietary supplements |
| Quality: | Gluten-free, Lactose-free, Magnesium stearate-free, Vegan |
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.
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