Cowpeas are highly nutritious, and eating them regularly helps supplement vitamins and dietary fiber.

Cowpeas are a common vegetable on the dining table. In the broad sense, the term refers to legume crops whose tender pods are eaten; in the narrow sense, it usually refers to the long yardlong bean, and in various places it is also called long bean, dai dou and so on. It has a crisp, tender texture and a delicate, slightly sweet flavor. It can be stir-fried plain, braised, or blanched and served as a cold dish. It is widely grown and easy to find in markets all year round.

From a nutritional point of view, cowpeas are high in water and relatively low in calories, while containing plant protein, dietary fiber, carotene, B vitamins and vitamin C, as well as certain amounts of minerals such as potassium, calcium, magnesium and iron. For people whose daily diet tends to be overly refined, keeping cowpeas as a regular vegetable is a simple way to supplement dietary fiber and vitamins.

The benefits brought by these nutrients are also fairly practical. Dietary fiber can promote intestinal peristalsis and increase satiety, and the low-calorie characteristic suits people who need to control their weight; minerals such as potassium participate in normal body metabolism and play a positive role in maintaining good condition. Stir-frying cowpeas with meat or eggs, combining meat and vegetables, can also make the nutritional structure of a meal more balanced.

There are also some common issues to note when eating cowpeas. Raw cowpeas contain natural components such as saponins and phytohemagglutinin, and eating them without cooking them thoroughly can easily cause discomfort such as nausea and abdominal pain. Therefore, they must be heated thoroughly when cooked, and stir-fried until the color darkens and there is no raw bean smell before taking them out of the pan. When selecting them, those with bright green color, plump pods, and no insect holes or spots are best. After buying them, they can be stored in a plastic bag in the refrigerator and eaten as soon as possible, which better guarantees both flavor and nutrition.