1. Department of Preventive Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
2. Department of Food and Nutrition, Daejeon University, Daejeon 34520, Korea.
3. Department of Food and Nutrition, Kookmin University, Seoul 02707, Korea.
4. Nutrition Information Center, Korean Nutrition Society, Seoul 04376, Korea.
5. Department of Food Science and Nutrition, Dongseo University, Busan 47011, Korea.