Can I gain weight from soda alone?
You’ll gain less weight than the weight of sugar you consume: a little less than half as much of the weight of sugar you consume that goes beyond your energy consumption. In very round terms, sugar has 4 calories per gram and fat has 9 calories per gram. Once you’ve fulfilled your energy requirements, when you consume 1 kg of sugar, it can be converted to about 0.44kg of fat (you won’t gain quite this much, because your body isn’t 100% efficient).
