Fat free or the low fat food
Despite the last decades of propaganda against the saturated fats, they have proven to be harmless.
The only thing is that, food that has had its fat removed tastes bland and downright crappy.
The food manufacturers then loaded up their products with chemicals, massive amount of sugar and artificial sweeteners.
What these manufacturers basically did was remove the good fat and replace it with the bad stuff.
This is actually how they have managed to turn healthy food such as yogurt into harmful products filled with the unhealthy ingredients.