 [ Symptoms ] how to raise hdl my hdl level is low 20 i do not smoke never have and exercise on a regular basis what can i do to raise my hdl levels  [ Disease ] myself and many friends we found eating onions   about 150 gram per day during the lunch    is very effective for increase the hdl in one case   without change any other factor as exercise drugs etc   after systemetically eating onions for 4 months hdl increased from 43 to 69