Salt is any ionic compound. Usually only compounds that are solid at room temperature, but most ionic compounds already are.
Bleach is anything that chemically destroys pigments to make things whiter. Normal bleach is sodium hypochlorite. Non-chlorine bleach could be anything.
The pizza is way worse, because it's about half saturated fat. The most common cooking oils (canola, soybean, olive) are mostly unsaturated fat.