Researchers find that supplementing people's diets with cocoa extract is linked with a lower risk of dying from heart disease. This is good news for chocolate lovers. So for more details, read on. Part 1. Vocabulary supplementing /ˈsəpləˌment,ˈsəpləmənt/ v. gerund or present participle add an extra element or amount to; ex. Bread will be supplementing our need for rice or carbohydrates. extract /ikˈstrakt/ n a preparation containing the active ingredient of a substance in concentrated form; ex. To make the cake ...