Dietary Guidelines Show Need For
Supplements
by: Loren Baker
The 2005 Dietary Guidelines
emphasize getting all of your nutrients from conventional
foods, if possible, but also flag the need for some
supplemental nutrients."The fact is that many people do
not get all the nutrients they need from diet alone, and there
are clear health benefits from getting the full recommended
amounts of all vitamins and minerals. A daily multivitamin can
go a long way toward filling the gaps, and an additional
supplement providing more calcium and vitamin D is advisable
for most people," said Annette Dickinson, Ph.D.,
president of the Council for Responsible
Nutrition (CRN), one of the dietary supplement industry’s
leading trade associations.
"Additionally, supplements of EPA and DHA omega-3 fatty acids
may be valuable for people who don’t eat at least two fish
meals each week." According to the 2005 Dietary Guidelines,
children and adolescents as well as adults often fall short in
vitamin E, adults frequently fail to get enough vitamin C,
people over age 50 should get the supplemental form of vitamin
B-12, women of childbearing age need synthetic folic acid (a B
vitamin), and lots of people need extra vitamin D. According to
Dr. Dickinson, "The good news is that all of these supplemental
nutrients can be consumed conveniently and inexpensively in the
form of a daily multivitamin, for less than a dime a day."
In addition, the Dietary Guidelines point out that calcium is a
critical nutrient that is in short supply for practically
everybody—children, teens, and adults. A multivitamin with
minerals will provide some extra calcium, but to get the full
amount of calcium that is recommended, people will need to use
a separate supplement containing calcium (preferably with
vitamin D) or consume lots of dairy products or
calcium-fortified foods. While conventional foods and fortified
foods and supplements are all effective ways to obtain
additional nutrients, cost and calories are also factors to
consider. The cost of 1,000 mg of calcium can range from 18
cents a day to $1.38 a day, depending on whether a person uses
a calcium tablet, soft calcium chews, lowfat milk, a breakfast
cereal with added calcium, or calcium-fortified orange juice
(listed from lowest to highest cost). The number of calories
that will come along with that amount of calcium ranges from
negligible to over 300.
"Multivitamins and calcium supplements can provide consumers
with a major boost in their attempts to meet their nutrient
needs while controlling cost and avoiding excess calories,"
said Dr. Dickinson. "The 2005 Dietary Guidelines flag important
nutrient shortfalls, and ideally the Food Guide Pyramid (when
it comes out) should feature a flag on top to remind people to
use appropriate supplements in addition to improving their
diets and adopting a healthier lifestyle. Supplements can be an
integral part of an optimal diet and should always be viewed in
the context of a healthy lifestyle."
See below for a summary of the Dietary Guidelines comments on
nutrient shortfalls. The Council for Responsible Nutrition
(CRN), founded in 1973, is a Washington, D.C.-based trade
association representing dietary supplement industry ingredient
suppliers and manufacturers. CRN members adhere to a strong
code of ethics, comply with dosage limits and manufacture
dietary supplements to high quality standards under good
manufacturing practices. For more information on CRN, visit
www.crnusa.org.
2005 Dietary Guidelines: Nutrient Shortfalls in the General
Population Shortfalls for adults: calcium, potassium, fiber,
magnesium, vitamin C, vitamin E, and carotenoids (as a source
of vitamin A) Shortfalls for children and adolescents: calcium,
potassium, fiber, magnesium, and vitamin E 2005 Dietary
Guidelines: Recommendations for Special Needs Vitamin B-12 for
People Over 50 Although a substantial proportion of individuals
over age 50 have reduced ability to absorb naturally occurring
vitamin B-12, they are able to absorb the crystalline form.
Thus, all individuals over the age of 50 should be encouraged
to meet their Recommended Dietary Allowance (RDA, 2.4 mcg/day)
for vitamin B-12 by eating foods fortified with vitamin B-12
such as fortified cereals, or by taking the crystalline form of
vitamin B-12 supplements.
Iron for Women Based on blood values, substantial numbers of
adolescent females and women of childbearing age are iron
deficient. Thus, these groups should eat foods high in
heme-iron (e.g., meats) or iron-fortified foods with an
enhancer of iron absorption, such as foods rich in vitamin C
(e.g., orange juice). Folic Acid for Women of Childbearing Age
Since folic acid reduces the risk of the neural tube defects,
spina bifida and anencephaly, a daily intake of 400 mcg/day of
synthetic folic acid (from fortified foods or supplements in
addition to food forms of folate from a varied diet) is
recommended for women of childbearing age who may become
pregnant. Pregnant women should consume 600 mcg/day of
synthetic folic acid (from fortified foods or supplements) in
addition to food forms of folate from a varied diet. Vitamin D
for the Elderly, People with Dark Skin, and People Who Avoid
the Sun Adequate vitamin D status, which depends on dietary
intake and cutaneous synthesis [synthesis in skin exposed to
sunlight], is important for optimal calcium absorption, and it
can reduce the risk for bone loss. The elderly and individuals
with dark skin (because the ability to synthesize vitamin D
from exposure to sunlight varies with degree of skin
pigmentation) and people who get very little exposure to
sunlight (e.g., housebound individuals) may need as much as
1,000 International Units per day to achieve protective blood
levels of the vitamin.
Fish, EPA, and DHA Evidence suggests that consuming
approximately two servings of fish per week (about 8 ounces
total) may reduce the risk of mortality from coronary heart
disease and that consuming EPA and DHA (two long chain
polyunsaturated fatty acids in fish) may reduce the risk of
mortality from cardiovascular disease in people who have
already experienced a cardiac event.
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