Timing5-HTP

Best before bed

When to take 5-HTP

Evening or before bed

5-HTP is a direct building block of serotonin, which the body later turns into melatonin. It's taken in the evening for mood and sleep.

Updated 2026-10-25

Best time in your day

  1. Wake
  2. Workout
  3. Breakfast
  4. Lunch
  5. Evening
  6. Workout
  7. Dinner
  8. Walk
  9. Bed
When
Evening or before bed
Food
With or without food
Typical dose
50–200 mg per day; start at 50 mg

How to take it

  1. 1Start at 50 mg in the evening
  2. 2Increase slowly
  3. 3Take it with a light snack if it causes nausea
  4. 4Don't use it long term without supervision

Watch out

Combining 5-HTP with serotonergic drugs can cause serotonin syndrome, which is dangerous. Never combine without medical advice.

Keep apart from

  • Antidepressants (SSRIs, SNRIs, MAOIs)
  • Triptans
  • Tramadol
  • St John's wort

Common questions

Can I take it with an antidepressant?

No, not without your doctor.

Does it help sleep?

It may help, since serotonin becomes melatonin.

Why does it cause nausea?

Serotonin in the gut affects nausea; start low.

Explore further

Commonly used for

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For general education only, not medical advice. Talk to a qualified doctor before starting or changing supplements, especially if you are pregnant, nursing or on medication.