Is Red Wine High in Potassium? Separating Fact from Fiction
                                
                                
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                                    3 min read                                
                            
                                A single 5-ounce glass of red wine, such as Merlot, contains nearly 200 mg of potassium. However, is red wine high in potassium relative to other common foods and your daily needs? The answer is more nuanced than you might think.