Kava Aging and Mobility Study

Description

This research study is testing whether a specially prepared form of kava, a traditional plant-based supplement, can help improve mobility, sleep, and stress in older adults. Kava has been used safely for centuries in the South Pacific as a natural remedy for relaxation and better sleep, but some modern versions raised safety concerns due to rare liver problems. Researchers have developed a safer version called “AB-free kava,” which removes compounds (flavokavains A and B) believed to cause liver issues. Early lab and pilot studies suggest AB-free kava may help improve sleep, reduce stress, decrease inflammation, and support physical activity. This pilot clinical trial will enroll 40 sedentary adults age 70+ who have sleep difficulties. Participants will be randomly assigned to receive either AB-free kava (225 mg/day) or a placebo daily for 8 weeks. The study is double-blind, meaning neither participants nor researchers will know which treatment each person is receiving. Participants will complete visits at the start, midpoint (week 4), and end (week 8) of the study. At each visit, researchers will assess walking ability, grip strength, and sleep quality using wearable activity trackers and validated questionnaires. Blood and hair samples will be collected to measure stress hormones and inflammation. Participants will be screened for eligibility based on age, sleep problems, mobility, and general health. Those with significant health conditions, cognitive impairments, or certain medication use will not be eligible. The study aims to test whether AB-free kava is safe, acceptable, and potentially beneficial for improving sleep and physical function in older adults. If results are promising, this could lead to future larger studies testing AB-free kava as a natural option to support healthy aging.