Will eating a bag of potatoes, two bags of big wave chips and a bag of happy chips gain weight in three days?

It will get longer after eating, which has nothing to do with the number of days. Besides, these foods are swollen and high in calories. You should reduce fat and eat more vegetables, fruits, protein, starch (rice). Noodles steamed bread. Eat less, don't eat pork, the fat content is too high, eat chicken breast, beef, shrimp and so on, protein is still beautiful and slim, as for puffed food, fried food and so on, you can't help but eat a little, just don't eat too much.