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David Cameron-Smith

David Cameron-Smith

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Super-foods!

Experts — Posted 04/06/13

Why we should eat our greens!

The biggest dining table battles are fought over vegetables and leafy greens. Lying unloved on the side of the plate, veggies and greens are either labeled as simply garnish or rabbit food, but they have an important role to play in human health.

Vegetables contain an amazing array of vitamins, carbohydrates and proteins. The link between citrus fruits and scurvy, the deadly disease that mysteriously decimated exploring mariners confined to a unerring daily diet of salted beef and hard biscuits, led to the discovery of vitamins (vital-amines) - in this case Vitamin C. Further discoveries added new vitamins which must be obtained from foods, with deficiencies sometimes causing everything from horrendous skin diseases through to madness and occasionally death.

Modern nutrition has continued to explore the world of vegetables. Many vegetables have a bitter taste. It’s this taste that creates the occasional strong aversion most children and many adults have against eating greens. The offending bitter chemicals are a dazzling array of natural defenses and toxins plants have developed to cope with harsh UV-rays and pests that want to eat them. These pests can include humans, although a human is much larger than a nibbling grub, so relatively few vegetables can pack a punch that can cause toxic responses.

These plant-derived chemicals, sometimes known as phyto-chemicals, include anti-oxidants but also whole classes of compounds which have been shown in test tubes to interact with biological pathways, including having powerful anti-inflammatory effects.

There are other amazing benefits from adding green vegetables to a meal.

- Eating at least 60 grams (around a handful of beans or a fist size piece of broccoli) every day has been shown in a large population survey to add up to two years of life.

- Vegetables contain nitrogen in an inorganic compound known as nitrates.  Somewhat amazingly, once eaten these nitrates are absorbed into the blood and are released back into the body through saliva.  Once through this second cycle, bacteria in your mouth convert the nitrites into nitrate, an organic compound. Nitrate is converted to nitrogen oxide (NO) a powerful anti-hypertensive lowering blood pressure.

- Children view a meal that contains vegetables on a plate as more appetizing than a meal without vegetables. Adding different types of vegetables served in a variety of ways, including raw or cooked, are viewed by children as a complete meal.

There is no easy way to encourage children to eat vegetables, although the best nutrition research suggests that providing vegetables as bite sized snacks, limiting pre-dinner snacks to encourage a dinner time appetite and of course engaging children in buying, preparing and serving vegetables are all part of making vegetables part of the evening meal enjoyed by all.

Green vegetables are really the true super-foods.

Extra   Find a farmers market near you to buy the freshest greens
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