Why does chewing betel nut cause dizziness?

Sep 18, 2024 Source: Cainiu Health
Disease description:

A friend gave me a betel nut to eat today, and afterward I started feeling a bit dizzy. Why is that? What causes dizziness after eating betel nut?

Doctor's answer (1)
Dr. Lv Zhiqin

Feeling dizzy after chewing betel nut may be caused by multiple factors. Components in betel nut, such as arecoline and guvacine, are alkaloids that can stimulate the central nervous system, causing neural excitation, which may lead to increased heart rate and elevated blood pressure. Some individuals may consequently experience dizziness or even hallucinations due to the potential neural anesthetic side effects.

Individuals vary in their tolerance to betel nut, and some may be more sensitive to certain components, making them more prone to symptoms such as dizziness. Additionally, betel nut may affect blood glucose levels, especially when consumed on an empty stomach, potentially causing dizziness, weakness, and other symptoms due to reduced blood sugar levels. Long-term or excessive betel nut consumption may also lead to oral diseases, digestive system problems, and an increased risk of developing oral cancer. It may interfere with eating and cause malnutrition, leading to anemia. Treatment may involve taking medications such as ferrous succinate tablets or ferrous sulfate tablets under a doctor's guidance.

If dizziness or other adverse symptoms occur after chewing betel nut, consumption should be stopped immediately, and appropriate measures should be taken, such as drinking more water and resting. If symptoms persist or worsen, prompt medical attention is recommended.