Understanding the Truth: How Many Calories Are in Vape Juice?
                                
                                
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                                    4 min read                                
                            
                                According to research, the main base ingredients in vape juice—vegetable glycerin (VG) and propylene glycol (PG)—contain approximately 4 calories per gram. However, the crucial point is that when you ask how many calories are in vape juice, the number is practically irrelevant because these calories are not absorbed by the body through inhalation.