A study suggests, garlic may be useful in addition to medication to treat high blood pressure. In the latest study, researchers from the University of Adelaide, Australia, enrolled 50 patients in a trial to see if garlic supplements could help those whose blood pressure was high, despite medication. Those given four capsules of garlic extract a day had lower blood pressure than those on placebo. Garlic has long been thought to be good for the heart. Garlic supplements have previously been shown to lower cholesterol and reduce high blood pressure in those with untreated hypertension. The study is reported in the science journal Maturitas.