Phytosterols are fatty alcohols found in plants that can block the absorption of dietary oxidized cholesterol when taken with food. Cholesterol Blocker provides 500mg of phytosterols per tablet; 1 milligram of phytosterols may block absorption of 1 milligram of cholesterol — making this quite the terrific heart-shaped chewable. It’s easy to take — just have one with a meal. Another bonus: Its seriously tasty vanilla flavor.