The invention relates to an agent for preventing, improving or treating
hypertension, which exhibits a hypotensive effect, inhibits the rise of
blood pressure and improves hypertension, and food for preventing or
improving hypertension, which does not become a burden in daily intake,
has a higher antihypertensive effect and is useful as a diet during
treatment for patients of hypertension. The agent for preventing,
improving or treating hypertension contains the following components (A)
and (B): (A) a compound selected from the group consisting of caffeic
acid, chlorogenic acid and ferulic acid, and esters and pharmaceutically
acceptable salts thereof; and (B) a component selected from the group
consisting of central nervous system stimulating components, food fibers,
extracts of perennial evergreen leaves of the genus Camellia, Theaceae,
or Eucommia ulmoides Oliver, Eucommiae, organic acids having a molecular
weight of 60 to 300 (excluding citric acid) and pharmaceutically
acceptable salts thereof, and sugar alcohols.