Advances and Challenges in Interaction Between Heteroglycans and Bifidobacterium: Utilization Strategies, Intestinal Health and Future Perspectives

•Bifidobacterium can utilize heteroglycans by complex carbohydrate metabolism system.•Heteroglycan utilization by Bifidobacterium spp. is beneficial to intestinal health.•Heteroglycan-derived metabolites play crucial roles in maintain intestinal function.