Which action is using a dietary supplement?

Brian is admitted to the hospital after a motor vehicle crash. during his stay at the hospital, physical therapists him with his recovery. this is care?

This is a negative reaction to food that doesn’t involve the immune system

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.