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The author points out that the kinds of vegetable at our disposal ____ .
If the key to good nutrition is consuming a variety of
foods, then vegetables can truly stand as the cornerstone
of a health diet. Of all foods, they offer the most diversity.
There are literally hundreds of varieties available to us,
and because of careful plant breeding, today's vegetable
harvest is continually being expanded and improved. In
addition, vegetables are replete with nutrients. They
supply nearly all of the vitamins and minerals required for
good health, many of them – especially starchy vegetables
like potatoes and winter squash - contain complex
carbohydrates, which furnish us with energy. Most also
provide dietary fiber, and a few, such as lima beans and
potatoes, can contribute significantly to our protein
intake. At the same time, vegetables contain no
cholesterol, have little or no fat, and are low in calories. In
nutritional parlance, vegetables are “nutrient dense” – that
is, their store of nutrients is relatively high for the number
of calories they supply.