prebiotics 益生元 organic jerusalem artichoke 有机菊芋 organic yacon root 有机雪莲果 fiber rich in inulin & fructooligosaccharides (FOS) 纤维富含菊糖及{FOS}低聚果糖 stimulate growth & activity of good gut microbial communities 刺激生长和活动良好的肠道微生物群落