We used data from the 1993 Italian Household Multipurpose Survey, base
d on a sample of 46,693 subjects ages 15 years or over, to analyze the
relation between frequency of vegetable consumption and prevalence of
12 chronic diseases. We observed little association with diabetes mel
litus, hypertension, and allergy. There were inverse relations between
vegetable consumption and myocardial infarction [odds ratio (OR) = 0.
79 for the highest tertile], angina pectoris (OR = 0.89), chronic bron
chitis (OR = 0.69), bronchial asthma (OR = 0.70), peptic ulcer (OR = 0
.74), gallstones (OR = 0.92), liver cirrhosis (OR = 0.71), kidney ston
es (OR = 0.68), and arthritis (OR = 0.84). Adjustment for alcohol and
tobacco use made little difference.