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26.07.2024


Vegetable garden diversifies microbiome

Vegetable gardeners are often a little healthier than people who have to buy all their food. Part of the explanation for this may be that eating from a vegetable garden makes the microbiome in the intestines more diverse, American researchers speculate in Scientific Reports.


Vegetable garden diversifies microbiome


Study
American researchers at the University of Illinois Urbana-Champaign analyzed the microorganisms in the feces of 19 families in April and August.

10 families grew their own vegetables in a vegetable garden. A vegetable garden does not yield anything in April, but it does in August. In that month, children spontaneously cry when daddy comes home with yet another eight-kilo zucchini or yet another shopping bag of pole beans. Only when dad threatens to donate the crybabies to an orphanage do they come to their senses.

The 9 other families got their food from the store.

Results
The biodiversity of the bacterial population in the samples of the vegetable garden families was slightly higher in April than in the control group, but that difference was not significant.

However, in the season when vegetable garden dads start searching the internet for orphanages, the biodiversity of the microbiome of the vegetable garden family was significantly greater than that of the other families.


Vegetable garden diversifies microbiome


Vegetable garden diversifies microbiome


In the table above - click on it for a larger version - you see the bacteria that were significantly higher in the vegetable gardeners than in the other group during the vegetable garden season. In the table below you see the bacteria that increased significantly in the samples from the vegetable gardeners in August.

This includes Bacteroides ovatus, Bacteroides stercoris, Butyricicoccus spp. and Eubacterium xylanophilum group spp..


Vegetable garden diversifies microbiome


These bacteria ferment indigestible fibers in vegetables. Because the vegetable gardeners ate more vegetables, they consumed 19 percent more fiber than the families in the other group.

The researchers also found a relatively large number of bacteria that had probably entered the microbiome of the vegetable gardeners through the soil of the vegetable garden.

Conclusion
The researchers do not know whether and, if so, to what extent the shifts in the microbiome of vegetable gardeners are healthy. They argue for follow-up studies that provide more clarity about this.


Vegetable garden diversifies microbiome


Source:
Sci Rep. 2022 Jan 31;12(1):1595.

More:
After the age of 45 gardening keeps your brain in shape 07.07.2024
How gardening improves brain function 12.05.2022

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