Can onions and broad beans be eaten together?

Jun 06, 2025 Source: Cainiu Health

Dr. Yu Yongchao

Introduction

Onions are rich in vitamins, minerals, and dietary fiber, which help promote digestion and enhance immunity. Broad beans, on the other hand, are abundant in protein, carbohydrates, and various vitamins, helping provide energy and maintain overall health. Combining onions with broad beans during cooking can enhance both the flavor and nutritional value of dishes, thereby promoting better nutrient absorption and utilization to a certain extent.

Generally speaking, onions and broad beans can be consumed together, but attention should be paid to controlling the intake amount. Detailed analysis is as follows:

Onions are rich in vitamins, minerals, and dietary fiber, which help promote digestion and enhance immunity. Broad beans are rich in protein, carbohydrates, and various vitamins, which help provide energy and maintain overall health. In the cooking process, combining onions with broad beans not only enriches the taste and nutritional value of the dish but also promotes the absorption and utilization of nutrients to a certain extent.

Individuals with favism (G6PD deficiency) may experience acute hemolytic reactions after consuming broad beans, which can be severe and even life-threatening. Therefore, these patients should avoid eating broad beans and naturally should not consume them with onions. Additionally, individuals with indigestion, gastrointestinal sensitivity, or a tendency to bloat may experience increased gastrointestinal discomfort when consuming these together, leading to symptoms such as bloating and diarrhea.

Furthermore, in daily diet, it is important to maintain a balanced diet and diverse food intake, avoiding excessive consumption of any single food, to promote overall health.

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Who are the three types of people who should not eat broad beans?

Generally speaking, there is no saying that specifies "three types of people who cannot eat fava beans." Individuals with glucose-6-phosphate dehydrogenase deficiency, favism, digestive system disorders, allergies to fava beans, or kidney disease should avoid consuming fava beans to prevent potential health problems. In daily diets, individuals should choose foods appropriately based on their own health conditions.

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What foods should patients with favism avoid eating?

Under normal circumstances, individuals with G6PD deficiency (favism) should avoid eating fresh broad beans, broad bean products, certain legumes, processed foods containing broad bean ingredients, and fruits with strong oxidizing properties, as these foods may trigger hemolytic reactions and affect health. In daily life, in addition to adjusting their diet to prevent hemolysis, patients with favism should also avoid contact with broad bean pollen to prevent adverse reactions caused by inhalation.