Showing posts with label nutrients in fruits and vegetables. Show all posts
Showing posts with label nutrients in fruits and vegetables. Show all posts

Friday, 12 February 2016

Fresh vs. Frozen Vegetables: Which one is more Healthy?

The fresh fruits and vegetables are more expensive than frozen. It is difficult to keep them for a long time, though, so many people prefer to eat fresh fruits and vegetables as compare frozen, and the reason is that fresh produce are healthy. Is that true?
It is well known that fruits and vegetables are very healthy, be directly consume at maturity, and the reason is that the nutritional content of the vegetables will be at the top level at the peak of maturity. But health experts say that this may be true only if they are eating vegetables or fruits in season pounds. So it can be frozen for vegetables to be better than fresh vegetables alternative, if they are not dealt with in the normal off-season.

When frozen vegetables are better than fresh

The cases in which frozen vegetables are better than fresh, it is when they are transported long distances before being sold in the markets. Then frozen vegetables are more nutritious. Nutrition experts explain, however, that frozen vegetables are often picked before they ripen, which means they did not get the food content fully.
As well as the transfer of fruits and vegetables long distances, making them lose a lot of food content, for example, lose the fresh spinach half the content of folic acid after eight days, as vitamins and minerals decreases inside the stored incorrectly, and that exposing the high light and heat.

Fresh Vegetables and Frozen

This applies, of course, the fruit also. Nutrition experts say that the qualities of fruits sold in German shops are not quite high, as is often the sale of fruits and vegetables before maturity.

The benefits of frozen foods

And perhaps the most important characteristic of frozen fruits and vegetables is that it is often harvested after maturity, and using hot water is peeled, which helps to kill bacteria and stop some active enzymes that damage the fruits and vegetables quickly. And then it is frozen what helps them keep food contents.
It should be noted that frozen fruits and vegetables much better than canned. The canned vegetables and fruits lose a lot of important nutrients when kept inside tins. Health experts advised to avoid buying frozen fruits and vegetables if they are chopped or crushed, Addressing fruits and vegetables before freezing lose a lot of food, as well as the need to ensure that fruits and vegetables frozen completely free of additives such as salt or butter.
Fresh vs Frozen Vegetables
On the other hand, can help buy frozen fruit and vegetables to save money, which is the best option for those who wish to address them in the off-season. With the exception of that fresh fruits and vegetables remain the best, especially if they were purchased from farmers directly after picked immediately, stored away from buying from the sale of food stores.

Posted by: Jodie Jackson, December 4, 2015 in Healthy Food

Thursday, 13 August 2015

Dirt Poor: Have Fruits and Vegetables Become Less Nutritious?

Dirt Poor: Have Fruits and Vegetables Become Less Nutritious?

Because of soil depletion, crops grown decades ago were much richer in vitamins and minerals than the varieties most of us get today



Martin Poole, Digital Vision/Thinkstock
Dear EarthTalk: What’s the nutritional difference between the carrot I ate in 1970 and one I eat today? I’ve heard that that there’s very little nutrition left. Is that true?—Esther G., Newark, N.J.
It would be overkill to say that the carrot you eat today has very little nutrition in it—especially compared to some of the other less healthy foods you likely also eat—but it is true that fruits and vegetables grown decades ago were much richer in vitamins and minerals than the varieties most of us get today. The main culprit in this disturbing nutritional trend is soil depletion: Modern intensive agricultural methods have stripped increasing amounts of nutrients from the soil in which the food we eat grows. Sadly, each successive generation of fast-growing, pest-resistant carrot is truly less good for you than the one before.
A landmark study on the topic by Donald Davis and his team of researchers from the University of Texas (UT) at Austin’s Department of Chemistry and Biochemistry was published in December 2004 in the Journal of the American College of Nutrition. They studied U.S. Department of Agriculture nutritional data from both 1950 and 1999 for 43 different vegetables and fruits, finding “reliable declines” in the amount of protein, calcium, phosphorus, iron, riboflavin (vitamin B2) and vitamin C over the past half century. Davis and his colleagues chalk up this declining nutritional content to the preponderance of agricultural practices designed to improve traits (size, growth rate, pest resistance) other than nutrition.
“Efforts to breed new varieties of crops that provide greater yield, pest resistance and climate adaptability have allowed crops to grow bigger and more rapidly,” reported Davis, “but their ability to manufacture or uptake nutrients has not kept pace with their rapid growth.” There have likely been declines in other nutrients, too, he said, such as magnesium, zinc and vitamins B-6 and E, but they were not studied in 1950 and more research is needed to find out how much less we are getting of these key vitamins and minerals.
The Organic Consumers Association cites several other studies with similar findings: A Kushi Institute analysis of nutrient data from 1975 to 1997 found that average calcium levels in 12 fresh vegetables dropped 27 percent; iron levels 37 percent; vitamin A levels 21 percent, and vitamin C levels 30 percent. A similar study of British nutrient data from 1930 to 1980, published in the British Food Journal,found that in 20 vegetables the average calcium content had declined 19 percent; iron 22 percent; and potassium 14 percent. Yet another study concluded that one would have to eat eight oranges today to derive the same amount of Vitamin A as our grandparents would have gotten from one.
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UT’s Davis warns that just because fruits and vegetables aren’t as healthy as they used to be doesn’t mean we should avoid them. “Vegetables are extraordinarily rich in nutrients and beneficial phytochemicals,” he reported. “They are still there, and vegetables and fruits are our best sources for these.” 
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