Can red wine and orange juice be consumed together?
Generally speaking, red wine and orange juice can be consumed together as long as intake is moderate. The detailed explanation is as follows:

Red wine contains abundant polyphenolic compounds, while orange juice is rich in vitamin C and fruit acids. Their components do not directly conflict; when combined, they can even create a unique flavor. The sweet and tangy taste of orange juice can neutralize the astringency of red wine, making it smoother and more palatable—especially suitable for individuals who are not accustomed to the pure taste of red wine. When consumed in moderation together, vitamin C may also assist in promoting metabolism. However, it should be noted that both contain certain amounts of sugar, so total consumption should be controlled to avoid excessive intake.
When preparing the drink, it's recommended to mix red wine and orange juice in a 1:2 ratio to prevent the orange juice from overpowering the original flavor of the wine. Use freshly squeezed orange juice to minimize the impact of additives on taste. Limit the amount consumed—each serving should not exceed 200 milliliters—and avoid drinking on an empty stomach to reduce irritation to the gastrointestinal mucosa. Rinse your mouth promptly after drinking to reduce acid erosion on teeth. Red wine should be stored in a cool, dark place, and freshly squeezed orange juice should be consumed as soon as possible to ensure freshness and safety.