Definitions for "ECA stack"
A thermagenic supplement blend of Ephedra, Caffeine and Aspirin that is popular among fitness and bodybuilding cultures. It is said that these three ingredients give a synergistic effect together which give better results than any one on its own.
a component found in thermogenic weight ephedrine caffeine aspirin loss pills,
a component found in thermogenic weight loss pills, composed of ephedrine, caffeine and aspirin working to speed up the metabolism and thus cause calories to burn faster