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The power of your gut

Can avocados help us lose weight?

Diet
The gut microbiota Diet

Avocados may be rich in fats but have many dietary benefits. Already recognized for their cardiovascular benefits, avocados may also promote the excretion of fats ingested by overweight or obese people, by modifying their gut microbiota.

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Actu GenPu: L’avocat, mon partenaire minceur ?

About this article

Created 23 March 2021
Updated 06 June 2024

Despite their high fat and caloric content, avocados may help us lose weight. Their secret is their richness in fiber and monounsaturated fatty acids (MUFA), which increase satiety and reduce fat levels in the blood. But how does the consumption of avocados impact the bacteria in the gut microbiota and the products that result from the fermentation of ingested food, particularly in obese or (sidenote: Overweight is defined as a body mass index (BMI) of 25-30; obesity corresponds to a BMI of >30. ) ?

An avocado a day for three months

To answer this question, a team of researchers followed 157 adults aged 25 to 45 who were (sidenote: Overweight is defined as a body mass index (BMI) of 25-30; obesity corresponds to a BMI of >30. ) or obese, but otherwise healthy, for 12 weeks. The subjects were divided into two groups. All were given a meal prepared by the researchers once a day, instead of breakfast, lunch, or dinner. Only one group received a meal containing an avocado, the caloric content of which was matched in the other group. With the exception of the avocado, meal ingredients were >90% similar. For their other meals, the participants were instructed to maintain their usual eating habits and daily serving sizes.

More fat in the stool, less in the body

Results: participants in the avocado group reported MUFA (“good fat”) consumption that was ~20 g higher than the control group, while dietary fiber consumption was 14 g higher. The participants also had a daily caloric surplus of 300 kcal. Despite this, by the end of the study, they had not put on a single ounce. At the same time, their gut microbiota had diversified and was enriched in bacteria able to break down fiber. In addition, their stool contained diminished bile acid concentrations (molecules secreted by the digestive system which make it possible to absorb fats) and more fats. The authors conclude that by modifying the gut microbiota, avocados influence the host metabolism and increase fat excretion. They are already considering new dietary approaches to improve the health of the increasing number of overweight or obese people.

Old sources

Sources:

Thompson S. V., Bailey M.A., Taylor A.M. et al. Avocado Consumption Alters Gastrointestinal Bacteria Abundance and Microbial Metabolite Concentrations among Adults with Overweight or Obesity: A Randomized Controlled Trial. J Nutr 2020;00:1–10.

Tags
Weight Diet Food Fat Cardiovascular Obesity act Microbiome Flora

    See also

    Actu GP : Le thé vert, c’est bon pour mon microbiote ! Green tea is good for your microbiota!
    Actu GP : Sauter un repas, quelles conséquences sur le microbiote salivaire ? Skipping a meal: consequences for the salivary microbiota?
    Created 23 March 2021
    Updated 06 June 2024

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