Which vegetable is the king of protein? Unveiling the Top Plant-Based Sources
                                
                                
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                                    4 min read                                
                            
                                A single cup of cooked soybeans contains roughly 28 grams of protein, a figure that puts many meats to shame. This exceptional nutritional profile leads many to ask: Which vegetable is the king of protein? The answer reveals a powerful world of plant-based foods, but a singular monarch is difficult to name.