Can red bean and coix seed water help reduce edema?

Jul 31, 2025 Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Under normal circumstances, red bean and coix seed water can help alleviate edema to some extent. The effectiveness of red bean and coix seed water in reducing edema varies depending on the underlying cause. If the edema is caused by a medical condition, treatment should target the specific cause rather than relying on this beverage. It is important to consume it in moderation, as excessive intake may increase the burden on the kidneys. Long-term consumption may exacerbate internal coldness in individuals with a cold-deficient body constitution.

Generally speaking, red bean and coix seed water can help improve edema to some extent. The detailed explanation is as follows:

Red beans are rich in potassium, which helps promote the excretion of sodium from the body, regulate fluid balance, and reduce edema caused by sodium retention. The dietary fiber they contain also promotes intestinal motility and helps eliminate excess water from the body. Coix seed has strong diuretic properties, enhances kidney excretion function, promotes urine production, and accelerates the removal of excess body fluids. It is particularly effective in relieving edema caused by dampness accumulation or impaired fluid metabolism. When used together, the diuretic effect of red beans and the dampness-resolving effect of coix seed work synergistically to improve edema by regulating electrolyte balance and promoting water excretion.

The effectiveness of red bean and coix seed water in alleviating edema varies depending on the underlying cause of the edema. If the edema is caused by an underlying disease, treatment should target the specific cause rather than relying solely on this beverage. It is important to consume it in moderation, as excessive intake may increase the burden on the kidneys. Long-term consumption may intensify coldness in individuals with a cold-deficient constitution, so the frequency of consumption should be adjusted according to one's physical condition. Additionally, reducing high-salt food intake and engaging in appropriate physical activity are recommended to enhance the overall effectiveness in managing edema.

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