Are Onions a Carb, Fat, or Protein?
                                
                                
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                                    4 min read                                
                            
                                According to Healthline, raw onions are composed of approximately 89% water, 9% carbohydrates, and just over 1% protein. This macronutrient breakdown places them squarely in the carbohydrate category, although they contain a modest amount of fiber and negligible fat. The distinct flavor of onions also comes with numerous health benefits, making them a nutrient-dense addition to many meals.