This section is from the book "Food - What It Is And Does", by Edith Greer. Also available from Amazon: Food: What it is and Does.
The fruitfulness of the earth stirs every one that at all realizes it to a sense of wonder. Each fruit of plant or tree, when known for what it is, seems one of the greatest of the marvels that so abound among living things. Vegetation has for every season characteristic charm. Springtime brings anew evidences of growth; summer matures; autumn reaps; and winter keeps alive for nature's use what is needed to renew the life of vegetation and sustain that of animals and humanity. Fruits mean more in the life of vegetation than simply supplying refreshment to humanity. But as human foods, it is refreshment that fruits uniquely bring. Some are also distinctly nourishing, as bananas.
Fruits and vegetables are similar in composition, but differ in some very significant respects. Both contain much water, mineral matter, some cellulose, and protein.. (Though most fruits have little more than 1% of protein, this is not an insignificant proportion of their solids; often it is 2% 10%.
Refuse | AS EATEN | ||||||||
Water | Sweet Fruits | Acid | Mineral Salts | Protein | Fat | Fiber | Acid Fruits | ||
% | % | % | % | % | % | % | % | ||
35 | 75.8 | Bananas | 21.7 | •3 | •5 | 1.3 | .6 | I. | |
5 | 78.4 | Plums | 20.1 | 1. | •5 | 1. | - | - | |
- | 81.9 | Huckleberries | 16.5 | - | •3 | .6 | •5 | - | |
25 | 77.4 | Grapes | 14.5 | .6 | •5 | 1.3 | 1.6 | 4-3 | |
- | 85.3 | Pineapples | 12.2 | •7 | •3 | 4 | •3 | 4 | |
25 | 84.6 | Apples | "•3 | •7 | •3 | .6 | •5 | 1.2 | |
6 | 85. | Peaches | 10.8 | 5+ | .6 | •5 | •5 | - | |
- | 86.3 | Blackberries | 10.9 | .8 | •5 | 1•3 | 1. | 2.5 | |
- | 85. | 10. | 1.5 | .6 | 1. | - | 2.9 | Raspberries | |
- | 88.9 | 8.4 | 2.3 | .2 | 4 | .6 | 1.5 | Cranberries | |
6 | 90. | 6. | 1.1 | .6 | 1. | .6 | 1.4 | Strawberries | |
27 | 86.9 | 57 | 1.4 | •5 | .8 | .2 | - | Oranges | |
30 | 89.3 | 4 | 54 | •5 | 1. | •7 | 1.1 | Lemons | |
(Constructed from a variety of analyses).
 
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