Chokecherries has many benefical effects but till now i have no information on if it lowers cholesterol but it has many other benefical effects as the following:
Chokecherry calms the respiratory nerves and allays coughs, bronchitis, scrofula, fever, and asthma. It also is an outstanding remedy for weakness of the stomach with irritation, such as ulcers, gastritis, colitis, dyspepsia, diarrhea, and dysentery. It is helpful combined in digestive tonics with such herbs as licorice, ginseng, cypress, anise and tangerine peel.
i hope that helpful for you and thanks for your replay