Why do we get headaches drinking wine in the U.S. and not in Italy?

Benny Rossi of Il Podere del Falco winery outside Rome says U.S. wines cause headaches when winemakers don't have confidence and add too many sulfites.

Today marks my 11-month anniversary back in Rome. That same sized Excedrin bottle a friend brought me last spring (I should’ve asked for a couple of those sample sizes from 7-Eleven) has barely been dented. Most were inhaled two months ago during nine days spent in an alcoholic fog in Mexico. It begs the time-honored question, one I’ve asked ever since I was old enough to buy a drink and mature enough to use a passport.

Why don’t Italian wines give me a headache while wines in the U.S. send me screaming to pharmacies?
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