Hello,
This topic in essentiality is a very confusing topic as to which fruit is good for
constipation and gastric problem.
In general person must have fibre in the diet for having smooth passage of stool.
Fiber are of two types.Soluble and insoluble.
Soluble fibres are the ones which are very good for health besides removing constipation.These help in lowering of
cholesterol of body.But these soluble Fiber result in production of gas because of their ability to get broken in the intestine.Soluble Fiber is found in apples,oranges,pears,strawberries,nuts etc.
Insoluble fibres don't produce gas because they don't get broken inside intestines and are passed as such.
Examples are cabbage,onion,tomato,carrots,grapes,raisins,skins of fruits etc.
Ideally one should have mix of both type of fibres,
Along with intake of Fiber,one should do regular exercises for 40 minutes and take plenty of water.
Avoid dugs like pain killers and antidepressants since they cause constipation.
As far as packaged juices nd fresh juices are concerned,fresh home made juice is the best because,packaged juice becomes nutritively depleted because of processing and pasteurisation.
I would urge you to read about the various types of foods which provide fibres.Sufficient and detailed material is available at so many Internet sites.
Thanks.