STAYC Sieun’s Insane Diet Gains Attention

Everyone was shocked.

STAYC’s Sieun is known not just for her stunning vocals and bright energy, but also for her enviable figure. Fans have often wondered how she maintains such a lean and healthy look despite her hectic idol schedule — and it turns out one of her biggest diet secrets is surprisingly simple: a biscuit called Calo-Balance!

Calo-Balance is a popular Korean diet food product — a meal replacement bar that’s high in protein and fiber, yet low in calories. Often referred to as the “idol snack,” it’s become a staple for many K-pop stars who need something quick, convenient, and calorie-controlled between schedules. One biscuit stick is 81 calories making it easy to monitor intake while still staying full.

Sieun mentioned that when she goes on harsh diets and makes it her goal to lose weight, she splits one bar into three and has a piece for each meal. This limits her intake to 81 calories in a whole day! When she explained her diet method, the other members were shocked.

As an idol, she might have no choice but to do so, but this diet certainly is not recommended for regular folk!