Tart Cherry Juice

Supplements Easy 10 days oura
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Start the Health OS protocol "Tart Cherry Juice" (sleep-tart-cherry-juice) and show me today's step.

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Goal

Test how tart cherry juice affects sleep onset and sleep duration

Hypothesis

Tart cherry juice 1h before bed → more natural melatonin → faster sleep onset

Montmorency cherries contain melatonin and proanthocyanidins that inhibit IDO and increase tryptophan availability (Howatson 2012)

Expected Effects

  • ↓ sleep_latency
  • ↑ total_sleep_h

Phases

1

Baseline

5 days
  • Sleep as usual, without cherry juice
2

Cherry Juice

5 days
  • Drink 240ml (1 cup) of tart cherry juice 1 hour before bed
  • Use 100% juice with no added sugar (Montmorency)

Tracked Metrics

Primary

Secondary

Evaluation

Method: compare_phase_means

Design: baseline (5 days) → intervention (5 days)

Safety

Disclaimers

  • Contains sugar — factor in the calories (~120 kcal/cup)
  • If you have diabetes, check with your doctor
  • May have a mild laxative effect in the first few days

Stop Conditions

  • GI upset lasting more than 2 days
  • Allergic reaction