Calcium absorption is positively affected by feeding a yogurt containing GOS obtained from enzymatic action on milk lactose. Experimental study.

-ZENI S; SEIJO M., VÉNICA C., PITA MARTIN DE PORTELA M. LUZ , BERGAMINI C., WOLF I.,PEROTTI M. C,, ZENI SN

MONTREAL

Congreso; ANNUAL MEETING AMERICAN SOCIETY FOR BONE AND MINERAL RESEARCH; 2018

ASBMR

The galactooligosaccharides (GOS) are bioactive carbohydrates present in human milk. GOS could incorporated in dairy products, such as yogurt, from enzymatic action of β-galactosidase on the milk lactose. Its consumption changes the gut microbiota composition which release several metabolites that could improve calcium absorption (CaAbs) and bone health. We evaluated the prebiotic effect on CaAbs of a yogurt containing GOS during normal growth. Male weaning Wistar rats (n=10 per group) received during 30 days AIN´93-G control diet (CD) or diet based on the yogurt containing GOS (ED), and calcium (Ca) and protein according to AIN´93-G. Food consumption was evaluated three times per week; body weight (BW) and faecal Lactobacilli (LB) colonies weekly; CaAbs during the last 3 days of the experience and caecal pH and short-chain fatty acid (SCFAs) at the end of the study. Result as mean±SD. No differences in food consumption and BW were found (16.6±2.7 vs. 16.4±0.6 g and 229±13 vs. 214±5 g, respectively). ED compared to CD group showed an increased in faecal LB colonies (p