One of your friends is an avid user of dietary supplements. In contrast, you are both a registered dietitian and a chef with a culinary specialty in plant-based cuisine. You both have a debate on ""supplements vs. herbs and spices."" Which of the following points would be an effective argument in your position?
A) supplements may contain heavy metals
B) a supplement may only provide one active ingredient and serve a few benefits, whereas one spice or herb may provide multiple benefits
C) There is potential for overdose with high concentrations of an active ingredient
D) all of these would be effective arguments