Preparation, uses, and tips
Just before using, remove the leaves, rinse in cold water, and spin
or pat dry. Break into bite-sized pieces by hand, or toss smaller romaine leaves with seasoned
croutons, asiago cheese, tomatoes, and Caesar dressing.
Nutritional Highlights
Romaine lettuce, 1/2 cup (35g) (raw,
shredded)
Calories: 3.9
Protein: 0.45g
Carbohydrate: 0.66g
Total Fat: 0.056g
Fiber: 0.47g
*Good source of: Vitamin C (6.7mg), and Vitamin A (728 IU)
*Foods that are an “excellent source” of a particular
nutrient provide 20% or more of the Recommended Daily Value, based upon United States
Department of Agriculture (USDA) guidelines. Foods that are a “good source” of a
particular nutrient provide between 10 and 20% of the USDA Recommended Daily Value.
Nutritional information and daily nutritional guidelines may vary in different countries.
Please consult the appropriate organization in your country for specific nutritional values
and the recommended daily guidelines.
Health benefits and concerns
Asthma
Vitamin C, present in fruits and
vegetables, is a powerful antioxidant and
anti-inflammatory. This anti-inflammatory activity may influence the development of asthma
symptoms. A large preliminary study has shown that young children with asthma experience
significantly less wheezing if they eat a diet high in fruits rich in vitamin C.
Bruising
Many Americans eat insufficient amounts of foods containing vitamin
C; the disease caused by vitamin C deficiency, scurvy, causes easy bruising. While very few
people actually have scurvy, even minor deficiencies of vitamin C can increase the incidence
of bruising. People who experience easy bruising may want to try eating more fruits and
vegetables—common dietary sources of vitamin C.
Capillary fragility
Eating plenty of flavonoid- and
vitamin C-rich fruits and vegetables helps to support the structure of capillaries.
Cataracts
Some, but not all, studies have reported that eating more foods rich
in beta-carotene or
vitamin A was associated with a lower risk of cataracts. Synthetic beta-carotene
supplementation has not been found to reduce the risk of cataract formation. It remains
unclear whether natural beta-carotene from food or supplements would protect the eye or
whether beta-carotene in food is merely a marker for other protective factors in fruits and
vegetables high in beta-carotene.
High homocysteine
A controlled trial showed that eating a diet high in fruits and
vegetables containing folic acid, beta-carotene, and
vitamin C effectively lowered homocysteine levels. Healthy people were assigned to either a
diet containing a pound of fruits and vegetables per day, or to a diet containing 3 1/2 ounces
(99g) of fruits and vegetables per day. After four weeks, those eating the
higher amount of fruits and vegetables had an 11 percent lower homocysteine level compared to
those eating the lower amount of fruits and vegetables.
Multiple sclerosis (MS)
In one survey, researchers gathered information from nearly 400
individuals (half with MS) over three years. They found that consumption of vegetable protein,
fruit juice, and foods rich in vitamin C, thiamine, riboflavin, calcium, and potassium
correlated with a decreased MS risk.
Pregnancy
Pregnant women should consume 1,500mg of calcium per day. Food
sources of calcium include milk products, dark green
leafy vegetables,
tofu, sardines (canned with edible bones), salmon
(canned with edible bones), peas, and beans.
Stroke
Diets high in fruit and/or vegetables are associated with a reduced
risk of stroke, according to most studies. In a large preliminary study, cruciferous and green
leafy vegetables, conferred the highest degree of protection. Because it is not clear which
components of fruits and vegetables are most responsible for the protective effect against
stroke, people wishing to reduce their risk of stroke should rely primarily on eating more
fruits and vegetables themselves rather than taking supplements.
Health benefits and
concerns for vegetables
Many health benefits and concerns associated with this food are applicable to other
vegetables. Read about health benefits and concerns
for vegetables for a full description.
Copyright © 2002 Healthnotes, Inc. All rights
reserved. www.healthnotes.com
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Learn more about the authors of
Foodnotes.
The information presented in Foodnotes is for informational
purposes only and was created by a team of U.S. registered dietitians and food experts.
Consult your doctor, practitioner, and/or pharmacist for any health problem and before using
any supplements, making dietary changes, or before making any changes in prescribed
medications. Information expires December 2003.