Are Black Jacks Good For You? Separating the Healthy Plant from the Unhealthy Candy
                                
                                
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                                    4 min read                                
                            
                                In certain African regions, the *Bidens pilosa* plant, known as black jack, is consumed as a nutritious leafy vegetable. With the name also referring to a popular candy and a strategic card game, the question "are black jacks good for you?" has multiple, very different answers depending on the context.