Kudzu root extract comes from the kudzu plant and delivers a standardized amount of isoflavones, mainly puerarin. East Asian herbal traditions have relied on this root for generations.
People today reach for kudzu root extract to calm occasional tension and steady their mood during rough patches. Standardized extracts typically supply 300 to 900 mg a day. Taking the supplement with a meal aids absorption. Because extract strengths vary from one brand to the next, stick to the directions on your product’s label.
Caution is needed. Kudzu may interact with hormone-sensitive conditions and certain prescriptions. Get medical advice before using it alongside blood thinners (warfarin), diabetes medicines, or tamoxifen. Discontinue kudzu at least two weeks ahead of any surgery. Avoid it entirely during pregnancy or breastfeeding because safety data are missing.