It's based on opinion, but I would put that they won't start and get an addiction at an early age so it will be more difficult for them to start later in life.
A. Fish
Fish carries the most bacteria
Using half normal saline or hypotonic solution is appropriate in patients who are dehydrated. Hypotonic solutions have less osmotic pressure making it absorbable attracting more water thus it makes intracellular volume of cells increased, which leads to patient's safe hydration.
Im almost postive insulin would be the first thing recommended