Spanish Saying: Lo que no mata, engorda.
Literal Translation: What doesn’t kill you makes you fat.
English Equivalent: What doesn’t kill you makes you stronger.
People used to say this when faced with dubious food…should they eat it or not? Well, if it doesn’t kill you it will nourish (make fat). Today, people also use the modern version of the saying, Lo que no te mata, te hace más fuerte.