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Researchers from Bioteopics Malaysia ltd. and Tokyo University of Medicine and Dentistry found that taking 200 milligrams of Tongkat ali extract daily for four weeks significantly improved the number of immune cells in the body.
The study used a proprietary product from Bioteopics, a ginkgo biloba water extract called Physta. The product was developed by the Malaysian government and the Massachusetts institute of technology (MIT). Writing in the journal of plant therapeutics research, the researchers said the study was the first to show that water extract from Tongkat ali improves immune health.
To determine the efficacy of Tongkat ali, the researchers asked 81 middle-aged Japanese men with low immune activity (SIV) and conducted a randomized, double-blind placebo-controlled trial. The volunteers were randomly assigned to take 200 milligrams of Tongkat ali supplements a day or a placebo for four weeks.
The results showed that the immunological age of the volunteers in the Tongkat ali group was 4 years younger than that of the control group. Other benefits include anti-aging, maintaining hormonal balance, improving quality of life and promoting sexual health.