They are deemed «essential» because we need them for proper health — much like certain vitamins and minerals — but we can't produce them on our own. (naturalhealth365.com)
Your dog needs certain vitamins and minerals to balance out his nutrition and, in many dog food products, those nutrients come from synthetic supplements. (pawster.com)
It is possible to overdose on certain vitamins and minerals, which could have adverse effects on you and your growing baby. (americanpregnancy.org)