Foods at all Massachusetts General Hospital cafes and cafeterias were labeled with traffic light symbols indicating their relative health value: green for the healthiest foods, yellow labels for ...

Thorndike, A.N. et al. (2019) Calories Purchased by Hospital Employees After Implementation of a Cafeteria Traffic Light–Labeling and Choice Architecture Program.

"'Traffic light' food labels reduce calories purchased in hospital cafeteria." ScienceDaily. ScienceDaily, 10 July 2019. <www.sciencedaily.com / releases / 2019 / 07 / 190710134014.htm>.

A new study by Massachusetts General Hospital shows that labeling food choices in a hospital cafeteria with simple 'traffic-light' symbols indicating their relative health value was associated ...

A green traffic light meant an food option was 400 calories or less, a yellow light indicated 401 calories to 800 calories and a red light was placed next to choices with more than 800 calories.

The matter is worth study. However, leave the traffic light symbols to those people who drive on the "wrong" side of the road.

More information: Anne N. Thorndike et al, Calories Purchased by Hospital Employees After Implementation of a Cafeteria Traffic Light–Labeling and Choice Architecture Program, JAMA Network Open ...

We can't give a green light to color-coded food-nutrition labels when the public is still trying to figure out the shades of meaning in the terrorist-threat-level system.