How many calories are in 15 pieces of cashew nuts?
                                
                                
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                                    3 min read                                
                            
                                One ounce of cashews, which is approximately 18 nuts, contains about 157 calories, according to the USDA. Given this, 15 pieces of cashew nuts contain approximately 130 to 140 calories, though the exact amount can vary slightly based on the size of the nuts and how they are prepared.