Should I Take a Multi-Vit?

Q: Should I be taking a multi-vitamin?

A:  When making the decision whether you will take a multi, or not, keep this in mind:  EVERY process that occurs within your body (digestion, movement, cell regeneration, immune response, conscious thought, unconscious thought, hormone regulation, weight maintenance, etc. & etc.) takes place in the presence of water, energy, vitamins and minerals. 

The real question, for me, is - What happens if I am absent (even just low on) any of these things?