RT Journal T1 Calorie restriction and its impact on gut microbial composition and global metabolism A1 Xiaojiao Zheng, Shouli Wang, Wei Jia PB Front. Med. FD 2018-12-03 YR 2018 JF Frontiers of Medicine JO Front. Med. VO 12 IS 6 SP 634 DO 10.1007/s11684-018-0670-8 K1 caloric restriction;gut microbiota;metabolome LK {https://academic.hep.com.cn/fmd/EN/article/article_23734.shtml}