https://atlantak.com/%eb%8b%b9%eb%87%a8%eb%b3%91-%ec%a0%84-%eb%8b%a8%ea%b3%84-%ea%b3%84%ed%94%bc%ea%b0%80-%ea%b0%80%ec%9e%a5-%ed%9a%a8%ea%b3%bc%ec%a0%81/
"당뇨병 전 단계, 계피가 가장 효과적"