Survival benefit was tied to plant-based oils, including affordable alternatives to olive oilA large-scale longevity study suggested that more butter is bad, more plant oils are good -- and substituting plant-based oils for butter translated into better survival over several decades. After 33 years of follow-up, deaths were disproportionately more likely among people in the highest quartile versus the lowest quartile of butter consumption (HR 1.15, 95% CI 1.08-1.22). The opposite was true for the relationship between mortality and plant-based oil consumption as the latter appeared more protective (HR 0.84, 95% CI 0.79-0.90), even when olive oil was excluded from...