To compare effectiveness of taking amino acids in the morning with that in the evening (chrono-nutrition and amino acids.

To compare effectiveness of taking amino acids in the morning with that in the evening (chrono-nutrition and amino acids. - To compare effectiveness of taking amino acids in the morning with that in the evening (chrono-nutrition and amino acids.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000024386

Enrollment

Registered

2016-10-15

Start date

2016-10-17

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 individual

Interventions

Taking an amino-acid supplement at the time of awakening and a placebo before bed time is continued for 4 weeks. Taking a placebo at the time of awakening and an amino-acid supplement before bed time

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: (1) The age at the time of obtaining a consent is 20 years or older. (2) Female (3) Those from whom a written consent can be obtained on a voluntary basis.

Exclusion criteria

Exclusion criteria: The person who is unsuitable for the entry judged by an officer.

Design outcomes

Primary

Measure	Time frame
Muscle mass of whole body on Days 0, 14, and 28 after initiation of administration and on Day 14 after completion.	—

Secondary

Measure	Time frame
Body weight, amount of body fat, amount of skin moisture, and amount of moisture loss via the skin on Days 0, 14, and 28 after initiation of administration and on Day 14 after completion. Amount of salivary hormone, skin viscous elasticity, and QOL questionnaire.	—

Countries

Japan

Contacts

Public ContactTaizo Seki

Noevir Co., Ltd. Groupwide Research and Development

taizou_seki@n1.noevir.co.jp0748-35-2452

Outcome results

None listed

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