In terms of TCM those are all considered Cooling fruits with oranges and apples situated in the Earth(Sweet) category and pears in Metal(Pungent).
http://www.yinyangho...utrition_theoryYour present constitution may be affected negatively in terms of your "digestive fires" by necessitating more energy to handle Cold, raw food thus prolonging and diminishing new energy from the process of assimilation. In a sense, you may be spending some of your "energy profit" from such foods to merely further digest those very fruits. Simply, low efficiency. Consider having some walnuts or almonds with your oranges. I'm not certain of this but perhaps have a go at trying some oolong tea (warming/drying) with your apples.
This new "format" here at Imminst subtracted the ability to view posts in the thread (and the convenience of the editing buttons in the "Go Advanced" format) so I won't be naming exactly the poster who mentioned he made two raw fruit shakes a day. Four things wrong with that: 1) too much sugar at once, 2) too many items in the stomach at once which wears out the Spleen (each food needs certain enzyme combinations to digest; too many foods = weakened Spleen), and 3) most if not all fruits as mentioned before are Cooling (otherwise a very unwise longterm practice...losing weight, holding weight...beneficial...but after a while that can lead to Deficiency, weakness, debility) and, 4) too much internal Dampness which can manifest a number of issues (feel free to research all these Uppercase words in the context of Five Elements Theory and Traditional Chinese Medicine). Raw diets usually work well for people as they alleviate Liver Excesses created by decades of a Western diet rich in meats, refined sugars and flours, etc. and I will assume that you've found some sort of balance with your midday meal but realize that 2/3 of anyone's diet should not be Cooling fruit unless they are consciously applying such a diet to treat a specific condition.