This diuretic vegetable is of nutritional value because of its exhibiting aid to digestion, strengthening of the liver function, gall bladder function, and raising of HDL/LDL ratio. This reduces cholesterol levels, which diminishes the risk for arteriosclerosis and coronary heart disease. Aqueous extracts from artichoke leaves have also shown to reduce cholesterol by inhibiting HMG-CoA reductase and having a hypolipidemic influence, lowering blood cholesterol. Artichoke contains the bioactive agents apigenin and luteolin.
Reference : http://en.wikipedia.org/wiki/Artichoke