One of the reasons behind the suggestion by many experts that the best way to start a day is taking a glass warm of lemon water is that, a lemon contains 64% of required daily intake of vitamin C.
For containing some phytochemicals like terpenes and poly phenols, intake of warm lemon water in the morning proves your body with essential nutrients, which also improves overall health.
When you start a day with warm lemon water, it stimulates weight loss, improves your digestion, fights hunger craving, reduces acidity and creates an alkaline.
Lemon juice contains powerful antiviral and antibacterial properties and strengthen immune to fight diseases and infections.
Some benefits of taking warm lemon water are explained below:

http://m24health..co.ke/2016/08/this-is-why-drinking-warm-lemon-water.html?m=0