Effects of Roasted Hassho-mame (Mucuna beans) Tea Consumption on Psychological State, Fatigue, and Sleep Quality

A Randomized, Placebo-Controlled Crossover Study on the Effects of Roasted Hassho-mame (Mucuna Bean) Tea Consumption on Psychological State, Fatigue, and Sleep Quality - A Randomized, Placebo-Controlled Crossover Study on the Health Effects of Roasted Hassho-mame Tea

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059551

Enrollment

Registered

2025-10-30

Start date

2025-09-15

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy subject

Interventions

Test beverage: 2.3 g of roasted Mucuna beans and 1.0 g of black soybeans infused in 500 mL of water per day for two weeks. Placebo beverage: 1.0 g of black soybeans infused in 500 mL of water per day

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy adult men and women

Exclusion criteria

Exclusion criteria: Individuals receiving any medication prescribed by a physician; those who are pregnant or breastfeeding; and those with allergies to soybeans or other legumes.

Design outcomes

Primary

Measure	Time frame
Profile of Mood States 2 (POMS2)and sleep quality.	—

Secondary

Measure	Time frame
Fatigue, stress	—

Countries

Japan

Contacts

Public ContactRyohei Kono

Osaka Kawasaki Rehabilitation University Department of Rehabilitation

konor@kawasakigakuen.ac.jp0724466767

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026