Kudzu Root is a carefully formulated dietary supplement in convenient tablets containing 500 mg of kudzu root extract ( Pueraria montana ) in a high DER ratio of 4:1. Its a practical way to enrich your daily diet with plant-based ingredients. Why choose Kudzu Root SFD? 500 mg of kudzu root extract per serving. High DER ratio 4:1 – higher concentration. 90 days of portioning in the package. Easy form – tablets easy to swallow. Kudzu is a plant known in traditional recipes and used in the diets of those who want to consciously support their bodys balance. The DER ratio of 4:1 means that four times more plant material was used to create the extract, demonstrating its concentration.