Not idol related but I really appreciate how actresses lost weight in dedication for k-drama
Park Min Young was 37 kg with 168cm height in Marry My Husband role
Wonyoung
Aside from pilates, gym, yoga, she's strict on her no snack rules. Most of the time she doesn't eat the food on variety show
Note : she doesn't support strict diet on minor!
Ryujin
-bfast : iced water
-lunch : fried veggies (cabbages, mushroom, onion, green onion + oyster sauce)
-dinner : salad/her cravings
-snacks : jellies
*iced water makes ur body burn more calories to balance the water to body temperature