Martha RosenbergSubmitted photo

From antibiotics, hormones, and arsenic used to fatten U.S. livestock to nitrites, carbon monoxide, ammonia puffs, and chlorine baths used as preservatives, many ingredients in popular food production do not appear on the label and raise safety questions.

For example, newborn chicks are routinely sprayed with bacteriophage viruses to control germs, and shrimp are routinely dipped in formalin (a solution of formaldehyde) to control black spot. If consumers were given an informed choice, asks Martha Rosenberg, would they purchase these products?

Investigative health reporter Ms. Rosenberg, author of “Born With A Junk Food Deficiency,” will discuss unlabeled food, drugs, and other ingredients consumers may be ingesting without knowing it and how to be a more educated consumer. Books will be available for purchase, and the author will sign books at the conclusion of the program.

Ms. Rosenberg’s presentation will be from 6 to 7:30 p.m. on Nov. 16 at the Harold Washington Library Center in Chicago. Seating in the Cindy Pritzker Auditorium is first come, first served, with a maximum of 385.

Chicago Public Library’s One Book, One Chicago program explores “Animal, Vegetable, Miracle” in the 2016 – 2017 season, with the theme “Eat. Think. Grow” through a variety of programs.

Ms. Rosenberg creates cartoons for the RoundTable.