Can too many raisins be bad? The surprising downsides of overconsumption
                                
                                
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                                    4 min read                                
                            
                                Despite being a source of fiber and antioxidants, a half-cup serving of raisins contains around 217 calories and 47 grams of sugar, a concentration that makes them far from a low-calorie or low-sugar snack. This concentration of nutrients, while beneficial in small doses, can become problematic when overconsumed.