Organic foods: Are they safer? More nutritious?
Organic foods: Are they safer? More nutritious?
Discover the
difference between organic foods and their traditionally grown counterparts
when it comes to nutrition, safety and price.
Once found only in
health food stores, organic food is now a common feature at most grocery
stores. And that's made a bit of a problem in the produce aisle.
For
example, you can pick an apple grown with usual (conventional) methods. Or you
can pick one that's organic. Both apples are firm, shiny and red. They both
provide vitamins and fiber. And neither apple has fat, salt or cholesterol.
Which should you choose? Get the facts before you shop.
What is organic farming?
The word
"organic" means the way farmers grow and process farming
(agricultural) products. These products include fruits, vegetables, grains,
dairy products such as milk and cheese, and meat. Organic farming practices are
designed to meet the following goals:
·
Improve soil and water quality
·
Cut pollution
·
Provide safe, healthy places for farm animals (livestock) to
live
·
Enable natural farm animals' behavior
·
Promote a self-sustaining cycle of resources on a farm
Materials
or methods not allowed in organic farming include:
·
Artificial (synthetic) fertilizers to add nutrients to the soil
·
Sewage sludge as fertilizer
·
Most synthetic pesticides for pest control
·
Using radiation (irradiation) to preserve food or to get rid of
disease or pests
·
Using genetic technology to change the genetic makeup (genetic
engineering) of crops, which can improve disease or pest resistance, or to
improve crop harvests
·
Antibiotics or growth hormones for farm animals (livestock)
Organic
crop farming materials or practices may include:
·
Plant waste left on fields (green manure), farm animals' manure
or compost to improve soil quality
·
Plant rotation to keep soil quality and to stop cycles of pests
or disease
·
Cover crops that prevent wearing away of soil (erosion) when
sections of land aren't in use and to plow into soil for improving soil quality
·
Mulch to control weeds
·
Insects or insect traps to control pests
·
Certain natural pesticides and a few synthetic pesticides
approved for organic farming, used rarely and only as a last choice and
coordinated with a USDA organic
certifying agent
Organic
farming practices for farm animals (livestock) include:
·
Healthy living conditions and access to the outdoors
·
Pasture feeding for at least 30% of farm animals' nutritional
needs during grazing season
·
Organic food for animals
·
Shots to protect against disease (vaccinations)
Organic or not? Check the label
The U.S.
Department of Agriculture (USDA) has set up an organic certification program
that requires all organic food to meet strict government standards. These
standards control how such food is grown, handled and processed.
Any
product labeled as organic on the product description or packaging must be USDA certified.
If it's certified, the producer may also use an official USDA Organic
seal.
The USDA says
producers who sell less than $5,000 a year in organic food don't need to be
certified. These producers must follow the guidelines for organic food
production. But they don't need to go through the certification process. They
can label their products as organic. But they can't use the official USDA Organic
seal.
Products certified 95
percent or more organic may display this USDA seal.
The USDA guidelines
describe organic foods on product labels as:
·
100%
organic. This label is used on certified organic fruits,
vegetables, eggs, meat or other foods that have one ingredient. It may also be
used on food items with many ingredients if all the items are certified
organic, except for salt and water. These may have a USDA seal.
·
Organic. If a food with
many ingredients is labeled organic, at least 95% of the ingredients are
certified organic, except for salt and water. The items that aren't organic
must be from a USDA list
of approved additional ingredients. These also may have a USDA seal.
·
Made
with organic. If a product with many ingredients has at least 70%
certified organic ingredients, it may have a "made with organic"
ingredients label. For example, a breakfast cereal might be labeled "made
with organic oats." The ingredient list must show what items are organic.
These products can't carry a USDA seal.
·
Organic
ingredients. If a product has some organic ingredients but less than
70% of the ingredients are certified organic , the product can't be labeled as
organic. It also can't carry a USDA seal.
The ingredient list can show which ingredients are organic.
Does 'organic' mean the same thing as 'natural'?
No,
"natural" and "organic" are different. Usually,
"natural" on a food label means that the product has no artificial
colors, flavors or preservatives. "Natural" on a label doesn't have
to do with the methods or materials used to grow the food ingredients.
Also be
careful not to mix up other common food labels with organic labels. For
example, certified organic beef guidelines include pasture access during at
least 120 days of grazing season and no growth hormones. But the labels
"free-range" or "hormone-free" don't mean a farmer followed
all guidelines for organic certification.
Organic food: Is it safer or more nutritious?
Some data
shows possible health benefits of organic foods when compared with foods grown
using the usual (conventional) process. These studies have shown differences in
the food. But there is limited information to prove how these differences can
give potential overall health benefits.
Potential
benefits include the following:
·
Nutrients. Studies have
shown small to moderate increases in some nutrients in organic produce. Organic
produce may have more of certain antioxidants and types of flavonoids, which
have antioxidant properties.
·
Omega-3
fatty acids. The feeding requirements for organic farm animals
(livestock) usually cause higher levels of omega-3 fatty acids. These include
feeding cattle grass and alfalfa. Omega-3 fatty acids — a kind of fat — are
more heart healthy than other fats. These higher omega-3 fatty acids are found
in organic meats, dairy and eggs.
·
Toxic
metal. Cadmium is a toxic chemical naturally found in soils and
absorbed by plants. Studies have shown much lower cadmium levels in organic
grains, but not fruits and vegetables, when compared with crops grown using
usual (conventional) methods. The lower cadmium levels in organic grains may be
related to the ban on synthetic fertilizers in organic farming.
·
Pesticide
residue. Compared with produce grown using usual (conventional)
methods, organically grown produce has lower levels of pesticide residue. The
safety rules for the highest levels of residue allowed on conventional produce
have changed. In many cases, the levels have been lowered. Organic produce may
have residue because of pesticides approved for organic farming or because of
airborne pesticides from conventional farms.
·
Bacteria. Meats produced
using usual (conventional) methods may have higher amounts of dangerous types
of bacteria that may not be able to be treated with antibiotics. The overall
risk of contamination of organic foods with bacteria is the same as conventional
foods.
Are there downsides to buying organic?
One
common concern with organic food is cost. Organic foods often cost more than
similar foods grown using usual (conventional) methods. Higher prices are due,
in part, to more costly ways of farming.
Food safety tips
Whether
you go totally organic or choose to mix conventional and organic foods, keep
these tips in mind:
·
Choose
a variety of foods from a mix of sources. You'll get a
better variety of nutrients and lower your chance of exposure to a single
pesticide.
·
Buy
fruits and vegetables in season when you can. To get the
freshest produce, ask your grocer what is in season. Or buy food from your
local farmers market.
·
Read
food labels carefully. Just because a product says it's organic or has organic
ingredients doesn't mean it's a healthier choice. Some organic products may
still be high in sugar, salt, fat or calories.
·
Wash
and scrub fresh fruits and vegetables well under running water. Washing helps
remove dirt, germs and chemical traces from fruit and vegetable surfaces. But
you can't remove all pesticide traces by washing. Throwing away the outer
leaves of leafy vegetables can lessen contaminants. Peeling fruits and
vegetables can remove contaminants but may also cut nutrients.

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