This is going to make me sound like someone from a travel series where, say, the actor Stanley Tucci convinces CNN to fund his sumptuous eating tour of Italy, but nevertheless: Modern science teaches us that when you eat grapes, grapes change you. Researchers have confirmed that the simple act of eating about three daily servings of grapes for just two weeks can alter the expression of genes inside human skin cells, at least, as sampled from four human volunteers. This grape-induced genetic activation, according to their new study, was “ubiquitous and variable” but uniformly aided in these volunteers’ ability to withstand skin damage from ultraviolet (UV) radiation in sunlight. Biochemist John Pezzuto and his coauthors found that somatic cells from the volunteers’ skin displayed enhanced skin keratinization, a natural process whereby skin cells form a UV-protective layer by flattening out and accumulating fibrous keratin proteins. Sampled skin cells also showed signs of cornification, a similar UV-protective process in which a defensive layer of skin is produced via so-called programmed cell death, among other genetic responses the researchers identified via Gene Ontology (GO) enrichment analysis.