What made you want to look up apical? Please tell us where you read or heard it (including the quote, if possible).
For Heart Health: Psyllium fiber, the natural dietary fiber found in Metamucil, is clinically proven to help lower cholesterol levels because it forms a thick gel that traps some cholesterol, bile acids and waste in the gut.
Fiber: Get more fiber or bulk in the diet. If this cannot be done adequately by diet changes, consider adding a fiber supplement to the diet. There are many of these available, including psyllium (Metamucil) and methylcellulose (Citrucel).