Library.

“A glass of red wine helps protect against radiation on flights.”

A glass of red wine is not an established way to protect against flight radiation. No supplied study tests that benefit in airline passengers. A preliminary human experiment found reduced laboratory-induced DNA damage after de-alcoholized wine consumption, while alcohol tended to increase damage and whole wine showed protection only relative to alcohol. The claim turns limited findings about wine constituents into an unsupported practical benefit from drinking wine on flights.

“For a non-pregnant adult, drinking one standard glass of red wine per day increases cancer risk compared with drinking no alcohol.”

Available evidence indicates that one daily glass of red wine raises the risk of certain cancers compared with not drinking alcohol, because the carcinogenic agent is ethanol, not the beverage type. Major cancer and public-health agencies state that risk begins at low levels of intake. The main caveat is that wine-specific studies on overall cancer are mixed, and the increase at one drink per day is small in absolute terms and varies by cancer type and sex.