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Tryptophan

4 products

FITS L-Tryptophan 250mg 90 capsules
HotVegan
L-Tryptophan 250mg 90 capsules
Regular price 194,00 Kč
Sale price 194,00 Kč Regular price
FITS EAA 200g powder
Vegan
EAA 200g powder
Regular price 321,00 Kč
Sale price 321,00 Kč Regular price
FITS EAA 600mg 120 capsules
Vegan
EAA 600mg 120 capsules
Regular price 246,00 Kč
Sale price 246,00 Kč Regular price
FITS L-Tryptophan powder 50g
Vegan
L-Tryptophan powder 50g
Regular price 197,00 Kč
Sale price 197,00 Kč Regular price

What Is Tryptophan?

Tryptophan is an essential amino acid, meaning the body cannot produce it and it must be obtained from food or supplements. It is found in protein-rich foods such as turkey, chicken, eggs, dairy products, fish, nuts, seeds and legumes. Tryptophan is best known as a precursor for serotonin, a neurotransmitter involved in mood, and for melatonin, a hormone that helps regulate sleep. In dietary supplements, tryptophan is available as L-tryptophan capsules, tablets and powders, and it is also included in some sleep and relaxation formulas.

Benefits of Tryptophan Supplements

Tryptophan supplements are commonly used to support relaxation, mood balance and healthy sleep routines. Because tryptophan is involved in serotonin and melatonin production, it is often chosen by people who want support for falling asleep or for maintaining a calmer mood during stressful periods. Some people use tryptophan as part of evening routines, sometimes combined with magnesium, B vitamins or herbal ingredients. Individual responses can vary, and tryptophan works best when combined with healthy sleep habits and overall balanced nutrition.

Uses of Tryptophan

Tryptophan supplements are typically taken in the evening, following the dosage instructions on the label. Some people take it 30–60 minutes before bedtime, while others use it earlier in the day for mood support. It may be taken with a small carbohydrate-containing snack, as this can support tryptophan transport into the brain. Tryptophan is also found in combination products aimed at sleep or stress support. On our category page you can explore different tryptophan products – from standalone L-tryptophan to combined sleep-support formulas – and choose the option that matches your routine.

Tryptophan: Side Effects and Safety

Tryptophan is generally well tolerated when used as directed, but side effects can occur in some individuals. Possible effects include drowsiness, nausea, stomach discomfort, headache or vivid dreams. Because tryptophan can affect serotonin pathways, it may interact with certain medications such as antidepressants (SSRIs, SNRIs) or other serotonergic drugs, increasing the risk of serotonin-related side effects. People taking prescription medications, those with medical conditions, as well as pregnant and breastfeeding women should consult a healthcare professional before using tryptophan supplements. Avoid combining tryptophan with alcohol or sedatives.

Where to Buy Tryptophan in Estonia?

In Estonia, tryptophan supplements can be purchased from our e-shop fits.ee.