I heard that anything can be posinous if you drink too much of it, is this true?

Question: I heard that anything can be posinous if you drink too much of it, is this true?
- Keywords:
  poison,
  poisonous
Asked by fatlouietwin to Damien, Rachael, Simon, Suzi, Tim on 18 Jun 2011.
- Suzi Gage answered on 18 Jun 2011:
  
  Hi @fatlouietwin
  This is true, yes. You can kill yourself by drinking too much water.
  In fact, Leah Betts, a girl who died after taking ecstasy when I was in my teens, actually died because she drank too much water.
  
  However, you’d have to drink a LOT of water to be posioned by it. Leah Betts drank 7 litres of water in one evening. Also, if you’re not on drugs, you could drink even more, but the ecstasy in her system had affected her body’s ability to cope with all the water.
  
  The recommended amount of water to drink each day is about 1 or 2 litres, nowhere near a dangerous level.
  
  Hope this answers your question 🙂

Question: I heard that anything can be posinous if you drink too much of it, is this true?