4000 kilojoules Because a bag of potato chips consumes 2000 kilojoules, the total heat of two bags of potato chips is 4000 kilojoules. Therefore, eating potato chips can absorb more calories than ordinary food, and it is best for people who lose weight not to eat or eat less. Occasionally eating some snacks such as potato chips will not make people fat. When you lose weight, you can adjust your diet through exercise and long-term persistence to lose excess fat healthily.