CELERY. A traditional Vietnamese remedy for high blood pressure. Celery compounds reduce blood pressure in animals. Comparable human dose: two to four stalks a day. Also has a mild diuretic effect. Contains eight different families of anti-cancer compounds, such as phthalides and polyacetylenes, that detoxify carcinogens, especially cigarette smoke. Eating celery before or after vigorous exercise can induce mild to serious allergic reactions in some.