Song Hye-kyo's secret to skin: a surprisingly simple meal?

Song Hye-kyo posted a photo of dried pollack on SNS, and it really caught my eye because it felt like home cooking.
I heard that you often eat seasonal foods like abalone and dried pollack. I guess the secret to your skin care is your diet.
There seems to be a reason why people maintain porcelain skin even in their mid-40s.