Water retention is when the body accumulates too much water in the interstitial spaces of the tissues and is unable to get rid of it, such as through urination. Excess water can cause an area of the body to swell. The swelling is usually greater in areas below the heart. One of the most obvious features of water retention is edema in the lower extremities, especially the feet and ankles. The lower extremity edema may not be obvious when you first wake up in the morning, but it begins to show up a few hours after you get up and move around, and it gets worse over time. If you press firmly on the ankle with your finger, a small dimple will immediately appear on the skin and it will take a longer period of time before it returns to normal. Medically, this phenomenon is called pitting edema, and if edema appears in several parts of the body it is called generalized edema. Appropriate diet for water retention: 1. It is advisable to eat a light and easy-to-digest diet; 2. It is advisable to eat more warm Yang foods; 3. It is advisable to eat foods containing high quality protein. The list of suitable food: yellow cauliflower: yellow cauliflower is flat, sweet and slightly bitter, belongs to the liver, spleen and kidney meridian; it has the effect of clearing heat and diuretic, detoxifying and swelling, stopping bleeding and removing annoyance. Cucumber: cool in nature, sweet in taste, has a small poison; into the lung, stomach, large intestine meridian. It has the effect of clearing heat and water, detoxifying and swelling, generating fluid and quenching thirst. Mung beans: mung beans have the effect of clearing summer heat and benefitting the Qi, thirst and diuretic.