I'm on the DNC too and got the same call. It's useless to report it to DNC. They don't do anything about it anyway, and the number is fake. I called it back to check.
Got pre-recorded call on a Sunday, they left message on my answering machine, the whole thing....miracle herb to help with weight loss, reduce cholesterol & lower stress..... I filed a complaint with DoNotCall.gov - this sounds like newest one of those "auto warranty" robocalls! Keep filing those complaints - it worked against the auto warranty folks.
Received the same annoying call about weight loss and I am also on the do not call registry. I filed a complaint and asked that I be contacted about it.