Rice bran stimulates the production of IgA antibodies
If covid returns this winter, which natural immune boosters can you use? Vitamin D, zinc and quercetin, of course. Perhaps also magnesium and Q10, vitamin K, selenium and fish oil. And what else? A somewhat older American animal study suggests that the dietary fiber in rice may be of some interest.
In 2012, immunologists at Colorado State University published a study in the Journal of Medicinal Food in which a group of mice were fed a 10 percent rice bran diet for 4 weeks. A control group was fed standard food.
In the blood of the mice in the experimental group, the concentration of IgA antibodies increased after 2 weeks. IgA antibodies are active in mucous membranes and the respiratory tract, where they protect the body against viruses and other pathogens.
Supplementation with rice bran increased the number of Lactobacilli in the intestines of the mice, as was to be expected.
Dietary fiber is a prebiotic, and prebiotics are a medium for probiotics such as Lactobacilli. The researchers suspect that by stimulating the probiotic population, rice bran stimulates the production of IgA.
In 2012, covid didn't exist yet. But the idea that supplementation with prebiotics like rice bran can increase resistance to SARS-Cov2 is not so far-fetched. It has been suggested more than once after the corona outbreak. [Front Microbiol. 2020 Jun 9;11:1388.] [Front Immunol. 2021 Feb 24;12:635471.] [Front Microbiol. 2020 Jun 5;11:1302.] [Biomed Pharmacother. 2021 Jan;133:110947.] [Turk J Biol. 2020 Jun 21;44(3):265-72.] [3 Biotech. 2021 Jan;11(1):1.] [Trends Food Sci Technol. 2021 Feb;108:187-96]
J Med Food. 2012 May;15(5):469-75.
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