The conversation between human and AI assistant.
[|Human|] Why are lemons sometimes considered Alkaline?
[|AI|] Lemons are acidic, having a pH of around two.  However, alkaline byproducts are created when lemon juice is digested.  These alkaline byproducts make the blood and urine more alkaline.
[|Human|] 
Why are lemons sometimes considered Alkaline?