What is the nutritional value of vegetables

Why should we get diet rich in vegetable nutrition?

What are the health benefits of vegetables?

...Well!

Fresh vegetables endowed with almost all of the nutritional principles that our body requires. The health benefits of vegetable nutrition are enormous. They are good source of vitamins, minerals, antioxidants and dietry fiber.Vegetables, like fruits, are low in calories and fats but contain good amounts of vitamins and minerals. All the Green-Yellow-Orange vegetables are rich sources of calcium, magnesium, potassium, iron, beta-carotene, vitamin B-complex, vitamin-C, vitamin-A, and vitamin K.

As in fruits, vegetables too are home for many antioxidants. These health benefiting phyto-chemical compounds firstly; help protect the human body from oxidant stress, diseases, and cancers, and secondly; help the body develop the capacity to fight against these by boosting immunity.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.