The fat-rich diet has caused Norwegians to eat up the Norway's entire stockpile of butter, partly as the result of a "low-carb" diet sweeping Norway which emphasizes a higher fat intake.
"Sales all of a sudden just soared, 20 percent in October then 30 percent in November," said Lars Galtung, the head of communications at TINE, the country's biggest farmer-owned cooperative.
A rain filled summer reduced the quality of animal feed and cut milk output by 25 million liters had already limited butter supplies and the shortage has led some pundits to suggest that Norway, the world's eighth-largest oil exporter, offer some of its plentiful fuel supply in exchange for butter.
"Norwegians are not afraid of natural fats, but they they love their butter and cream," said Galtung. Butter is now selling on Norway's top auction website, with a 250-gram piece (about 8.2 ounces) starting at around $13, roughly four times its normal price.