plant sterols occur naturally in food & are similar in structure to cholesterol the hdl fat that is abundant in animal sourced fats. but what is not generally known is that the body produces its own cholesterol which is secreted into the digestive system in the form of bile to aid the digestive process.plant sterols are useful because they block cholesterol from being re-absorbed from the gut into the bloodstream & any cholesterol not absorbed is simply excreted. this is why diets high in plant sterols can help to control blood cholesterol levels & why plant sterols are now added to some specialist margarines. although plant sterols are naturally present in vegetable oils & grains modern diets tend to be low in these important nutrients & so it may be difficult to always achieve optimum levels from diet alone.each nature’s best plant sterol tablet contains 400mg of free plant sterols with up to 80% beta-sitosterols. we"e the level of pure plant sterols not the compound weight declared by some companies that may be only 50% sterols.this can make a useful contribution to our daily intake without any unnecessary additional calories.may help to reduce the absorption of cholesterola highly researched mode of actionuseful contribution to your daily intakea level of plant sterols that can make a difference