Hi Dave. Fasting is normative in Eastern Christianity, so there are millions of Christians who fast regularly. The Coptic Orthodox Church to which I belong, for instance, fasts for over 210 days of the year, with one meal at the end of the day (evening) consisting of only vegetarian food, in sensible portions with no animal products (though some fasts allow fish for the elderly or others who cannot completely fast according to the normal way for health reasons), i.e., only plant-based oils, no animal fats used in cooking, etc.
As for results...our Lord, God, and Savior Jesus Christ has told us that there are certain demons that can only be driven out by prayer and fasting (Mark 9:29), so that does happen sometimes (particularly in a monastic context, where even Egyptian Muslims will come for exorcism). But the results of fasting are generally internal, and best experienced in the context of Church-wide fasting, as then you have your brothers and sisters all striving together with you. This is one aspect of what makes the fasting for Great Lent (the longest single fasting period of the liturgical year -- 55 days) such a beautiful and holy time for us.
I am glad to read that you have had positive experiences related to your fasting, and hope that you will undertake it with the guidance of an experienced spiritual father, as it can be rather dangerous to 'go it alone' (as is the case with all the ascetic disciplines).
