What is the worst nutritional advice, dietary supplement, herbal supplement?

This is an obviously biased question from your biased media "teacher/trainer". the Atkins diet was proven to cause weight loss and the media that said that the loads of fat in it would cause heart problems were eventually proven wrong and Atkins was right. Why is the question only about dietary supplements? We get awful and dangerous and self serving advice every day in the media from the slanted FDA, AMA and Big Pharma. Their "advice" has led to millions of hospitalizaions and or deaths from reactions that were hidden from the public that showed up in clinical trials.