Although the lemon is often thought of as acidic, it is very effective in curing many digestion problems when mixed with a hot water, including biliousness, nausea, heartburn, disorders of the lower intestines like constipation and worm infestations.

It is even known to relieve hiccups. Water plus a few lemons becomes lemon juice. Lemon juice, when taken regularly in the morning, acts as a tonic to the liver and stimulates it to produce bile making it ready to digest the days food. It is also thought to help dissolve gall stones.

yes, it is said good for digestion and stomach. there comes acidic effort from the lemons but it is good for summer days too. everything has their own good sides.

what do you mean by taking it regularly?
how often and how much should we take in order to observe some positive effects enumerated by you?

I know this from my mum.She always give me lemon mixed with some spices when i got flu.I must say it really works but it does not taste good after mixing with that spices.