Barley water is a good food,nutritous to every person,an ideal summer drink now a days.Children(some) dont like the smell of it,but you can manage them drinking by preparing in this way.
It tastes like a lime juice .
Even for pregnant ladies doctors recommend to drink plenty of barley water.

Barley powder or seeds-2tbsps
Water-3 glasses
Lime juice -1to 1 1/2 tbsp
Honey-3 to 4 spoons
Sugar syrup 3 to 4 spoons
For diabetics and obese they can add a pinch of salt
Mix barley powder or seeds with water ,stir well and let it  boil .
After boiling for 10 to 15 mins,switch off the stove.Cover with a lid.
Let it cool.Strain the water if u do it with barley seeds.Add lime juice.
Next add honey or sugar .Freeze the barley water and serve chiiled.

Discarded Barley can be mixed with oats can make a nutritous  breakfast.