What You Eat Affects Your Genes

purkinje writes "Tiny bits of genetic material, called microRNAs, can make their way from the food you eat into your blood stream, and change how your genes are expressed, according to a new study. A team of Chinese scientists found tiny bits of white rice microRNA floating around in people's blood after a meal. When they looked at what was happening on a cellular level, they found that the microRNAs were changing gene expression, decreasing levels of a receptor that filters out LDL (bad) cholesterol. When the scientists gave mice both rice and a chemical to block the microRNAs, their levels of that receptor returned to normal — showing that the microRNAs weren't just swimming through the blood stream, but acting on genes in the animals' cells."

Comments

Truly Remarkable

[sackvillian]

This is amazing and one more nail in the coffin of our long-held dogma of genes being passed down from two parents, expressed but otherwise unaltered, then passed down to our children, all with just a little bit of mixing and mutation. From epigenetic modifications, to massive variances of stomach flora even between relatives, now to food's ability to affect our very gene expression... we've got some serious reconsidering to do about what makes us who we are.

Very cool.

Selective breeding over generations is GM

[tepples]

so tell me... why is Genetic Modification of food allowed?

Selective breeding over generations is genetic modification, and it's been going on for the past four millennia. Did you mean " recombinant genetic modification"?

what happens when someone decides to "leverage" food crops to produce drugs, and those accidentally cross-pollinate with the world's food supply?

Patent lawsuits like Monsanto v. Schmeiser.