In 1960 the meat-consumption habits of 25,153 California Seventh-Day Adventists were assessed by questionnaire. 7th day Adventists were chosen as these are religious groups that avoids tobacco, alcohol and caffeine, thus eliminating other key sources of heart risks from the analysis. Between 1960 and 1980 ischemic heart disease deaths were identified.
Meat consumption was positively associated with fatal ischemic heart disease in both men and women. For 45- to 64-year-old men, there was approximately a threefold difference in risk between men who ate meat daily and those who did not eat meat.
Heart Disease, Meat consumption and fatal ischemic heart disease