Dietary supplements as dangerous as drugs?

http://well.blogs.nytimes.com/2015/10/14/dietary-supplements-lead-to-20000-e-r-visits-yearly-study-finds/?em_pos=small&emc=edit_hh_20151016&nl=well&nlid=17683848&ref=headline&_r=0

http://www.nejm.org/doi/full/10.1056/NEJMsa1504267

http://www.ncbi.nlm.nih.gov/pubmed/17047216