Blue Light - Computer monitors, LED bulbs, street lights, car headlights
Meat - Especially non organic chicken with hormones and antibiotics.
Lettuce,Spinach, from US West coast, even organic - Perchlorate
Bread - Almost all breads contain something bad
Soy - Goitrogen, alters hormones, phytic acid
Beans, Lentils, "seeds" - Phytic acid
Eggs - E.Coli found on 90% of eggs worldwide
City Water - Fluoride, dissolved medications
Air - Pollution
Clothes - Polyester offgasses and is thought to cause breast cancer for women wearing polyester bras.
House Paint offgas, and House materials such as chipboard and furniture offgas Formaldehyde
It turns out almost nothing is 100% truly good.. unless you grew it in your own back yard, away from any cities, for food.
If you have something you eat, do, or use regularly that you consider good, please post it. It may not work for everyone, but it would be interesting to get some ideas what others find good.