Mangos help promote gut health
08 June 2018
Next time you suffer from constipation, you may want to consider grabbing a mango instead of reaching for a fibrer supplement, suggests a new Texas A & M University pilot study published in the peer-reviewed journal Molecular Nutrition and Food Research. The researchers found that mango, which contains a combination of polyphenols and fibre, was more effective than an equivalent amount of fibre powder in relieving constipation — a chronic digestive condition that affects an estimated 20 per cent of Americans.
"Our findings suggest that mango offers an advantage over fiber supplements because of the bioactive polyphenols contained in mangos that helped reduce markers of inflammation and change the make-up of the microbiome, which includes trillions of bacteria and other microbes living in our digestive track," says corresponding author Susanne U Mertens-Talcott, an associate professor in the department of nutrition and food science at Texas A & M University. "Fibre supplements and laxatives may aid in the treatment of constipation, but they may not fully address all symptoms, such as intestinal inflammation."
For the four-week study, 36 adult men and women with chronic constipation were randomly divided into two groups: the mango group ate about 300 grams of mango a day (equivalent to about 2 cups or 1 mango), while the fibre group consumed the equivalent amount of fibre powder into their daily diet (1 teaspoon or 5 grams of dietary psyllium fibre supplement).
Throughout the study, the participants' food intake was assessed by a food questionnaire to ensure that their eating habits did not change. The food intake analysis revealed that the mango and fibre groups consumed equivalent amounts of calories, carbohydrates, fibre, protein and fat.
Measures of constipation severity were taken at the beginning and end of four weeks, and both the mango and fibre groups improved over the course of the study. However, mangos were found to be more effective in reducing the symptoms of constipation in the participants than fibre alone. Mango supplementation significantly improved constipation status (stool frequency, consistency and shape) and increased short chain fatty acids levels, which indicate improvement of intestinal microbial composition. Mango consumption also helped to reduce certain biomarkers of inflammation.
The researchers conclude that more research is needed to determine the mechanism of action involved in the mango protective effect in constipation and which role mango polyphenols may play in supporting the beneficial effects of fibre.