If strawberries, melons, and other fruits agree with you, then eat freely of them, in due moderation.

But if, after three or four trials, you find that they do not agree with you, but make your stomach burn, and perhaps give you an attack of nettle-rash or hives, or a headache, then let them alone.
The banana is of some food value because it contains not only sugar, but considerable quantities of starch--about the same amount as potatoes.
But, if bananas are not fully ripe, both their starch and sugar are highly indigestible; while, if over-ripe, they have developed in them irritating substances, which are likely to upset the digestion and cause hives or eczema, especially in children.

Bananas should therefore be regarded rather as a luxury and an agreeable variety than as a substantial part of the diet.
Food Values of the Different Vegetables.

The vegetables depend for their value almost solely upon the alkaline salts and the water in them, and upon their flavor, which gives an agreeable variety to the diet.
Parsnips, beets, and carrots are among the most nutritious, as they contain some starch and sugar; but they so quickly pall upon the taste that they can be used only in small amounts.
Turnips and cabbages possess the merit of being cheap and very easily grown.

They contain valuable earthy salts, plenty of pure water, and a trace of starch.