Are there any side effects of drinking tea and red wine together?

Dec 08, 2025 Source: Cainiu Health

Dr. Huang Yuhong

Introduction

Excessive consumption of caffeine and alcohol can doubly irritate the gastrointestinal mucosa, potentially causing discomfort such as stomach pain and nausea. It may also increase the burden on the nervous system, leading to symptoms like dizziness and insomnia. Individuals with sensitive constitutions or weak digestive systems may experience rapid heartbeat and gastrointestinal discomfort even with small amounts. Total intake should be controlled when consuming these substances.

Generally, drinking tea and red wine together in small amounts has no obvious side effects. However, excessive consumption or sensitive individuals may experience discomfort. There is no absolute contraindication, but caution is advised. If in doubt, it is recommended to consult a healthcare professional beforehand. Detailed analysis is as follows:

Tea contains caffeine, and red wine contains alcohol. When consumed together in small quantities, the body can normally metabolize both substances without producing toxic byproducts, and most people will not experience noticeable discomfort, so there is no need for excessive concern. However, attention should be paid to the order and timing of consumption, avoiding large amounts within a short period.

Excessive intake may lead to dual irritation of the gastrointestinal mucosa by caffeine and alcohol, potentially causing stomach pain, nausea, and other discomforts. It may also increase the burden on the nervous system, resulting in symptoms such as dizziness and insomnia. Individuals with sensitive constitutions or weak digestive systems may even experience rapid heartbeat or gastrointestinal discomfort, even with small amounts.

To minimize risks, total intake should be controlled to prevent excessive consumption of alcohol and caffeine. It's best to space consumption 1–2 hours apart to reduce cumulative stimulation. People with gastrointestinal disorders or cardiovascular diseases should avoid combining the two. If persistent discomfort occurs after consumption, seek medical attention promptly.

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How long after opening can red wine still be consumed?

If promptly sealed and refrigerated after opening, the low temperature can slow down oxidation and extend the drinkable period to 5–7 days. However, even when refrigerated, you should monitor the condition of the liquid. If there is a noticeable sour or moldy smell, or if the color darkens, becomes cloudy, or develops sediment, this indicates spoilage. In such cases, the beverage should not be consumed regardless of storage duration, to avoid gastrointestinal discomfort.

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Can taking Jiaotai Pills cause excessive internal heat (fire)?

In general, whether taking Jiaotai Pills will cause "internal heat" (a TCM concept referring to symptoms like dryness and irritability) depends on the patient's constitution and medical condition. Jiaotai Pills are prescription medication and should be used only under a doctor's guidance; self-adjusting the dosage or treatment duration should be avoided. If discomforts such as dry mouth, constipation, or palpitations occur during use, they may indicate drug side effects or incompatibility with the individual's constitution; in such cases, discontinue the medication promptly and seek medical advice.