What do you prefer working with: pills – protein bars – inhalers of injection solutions?

Question: What do you prefer working with: pills - protein bars - inhalers of injection solutions?
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  protein bar
Asked by alexiareixach to Richard on 9 Mar 2016.
- Richard Friend answered on 9 Mar 2016:
  
  Pills, no questions asked! Protein bars are hard work and full of a million different ingredients, inhalers use tiny amounts of drug spread across a big piece of equipment, but with pills you’ve usually got about three or four different ingredients so it’s easier to find what you’re looking for.

Question: What do you prefer working with: pills - protein bars - inhalers of injection solutions?