Last month my cholesterol results showed a drop from 250 down to 194, but my HDL dropped from 34 to 23. R-lipoic acid and Acetyl-L-carnitine were the only two new supplements added to my daily regulars. The Dr. could not explain why my HDL had dropped. I have not taken cholesterol meds since getting PN five years ago. Any one have suggestion as to the HDL drop, isn't this the good stuff?