"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."
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.
What can be done? The key to
healthier produce is healthier soil. Alternating fields between growing
seasons to give land time to restore would be one important step.
Also, foregoing pesticides and fertilizers in favor of organic growing
methods is good for the soil, the produce and its consumers.
~~~~~~~~~~~
The article above touches on a few important points, first agricultural practices.
Mass produced foods are grown for their size and yield, not necessarily nutritional value.
This is one of many reasons we work to grow so much of our own food.
Second, Feed the SOIL to feed your plants.
There are so many organic options to feed your soil. We don't need synthetic, chemical fertilizers and pesticides.
Mycorrhizae
is a fungi that has a beneficial relationship with a plants roots.
When Mycorrhizal fungi comes into contact with a plants roots it begins
to colonize, or multiply, on the roots and begins to spread out into
the surrounding soil.
Lastly, Heirloom Seeds
are unaltered and open-pollinated. If you are looking for seed
varieties that have withstood the test of time, choose Heirloom Seeds.
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