Fruit is Nature's most splendid offering and the less it is handled and prepared (except in the way of cleansing), the better, from the health standpoint. Fruit eating solves the drinking water problem, for in fruit we get distilled water pure and undefiled. By abstaining from condiments and artificial sweets and eating only grains, fruits, and vegetables as Nature furnishes them, we never thirst for water or liquid in any form.
Simplicity in eating is an ideal for which to strive. The nearer you can get to one class of food at a meal, the better. Don't mix fruits and vegetables at one meal as this is likely to produce fermentation.
[Oddly, in reference to the above statement some of Mrs. Richter's recipes do mix some vegetable with fruit, but perhaps not enough to produce significant fermentation.]