We all have firsts. I distinctly recall my first conscious realization about the food I eat.
I was living in Boston at the time. I had just turned 30 and was a “work hard, play hard” type of person. I was working long hours as a graduate student doing research in a lab studying cancer. If I wasn’t working, I was playing sports or doing something active. I didn’t watch what I ate because I was in active and “in shape” (externally).