Abbreviations, contractions, acronyms are all different shortened forms of text and should be used sparingly. the flow of text is impeded by the appearance of abbreiations such as e.g. and i.e. ‘For example; and ‘Such as’ work much better in body text.
If abbreviations or acronyms are to be used frequently throughout a dcoument, a list of these should be included in a glossary.