Introduction
The DASH diet is an eating plan that
is low in fat but rich in low-fat dairy foods, fruits, and vegetables. DASH
stands for Dietary Approaches to Stop Hypertension. Hypertension is high blood
pressure. Following the DASH diet may lower blood pressure. The DASH diet may
also help you prevent high blood pressure if you have prehypertension (your
blood pressure is between 120–139 over 80–89).1 This
diet is also linked to a lower risk of heart disease and stroke.2
DASH also recommends eating whole grains, fish, poultry, nuts, seeds, and
dried beans (legumes) as part of a balanced diet.
DASH is one of
several lifestyle changes your doctor may recommend to lower your
high blood pressure. Your doctor may also want you to
decrease the amount of
sodium and sodium-rich prepared foods in your diet.
Lowering sodium while following DASH can lower blood pressure even further than
just DASH alone. You can cut down on your salt (sodium) intake by using a
salt substitute. Talk to your doctor before trying a
salt substitute.
Key points:
- Eating fewer processed foods, such as snack
items, luncheon meats, and canned soups, will reduce the amount of sodium in
your diet and help you lower your blood pressure.
- A diet high in
calcium,
potassium, and
magnesium may lower your blood pressure.
- A
diet
high in sodium may cause high blood
pressure.
- To increase the potassium in your diet, fruits and
vegetables are excellent sources of this nutrient. Dairy products are high in
calcium and magnesium. DASH recommends that you eat 8 to 10 servings of fruits
and vegetables and 3 servings of low-fat dairy products each
day.
- Eating a diet low in both
saturated fat and total fat will also help lower your
blood pressure. Only 30% of your total calories should be from fat, with only
7% to 10% of your fat calories from saturated fat. Saturated fat is found in
meats, cheeses, butter, poultry, snack foods, and other processed
foods.
- In general, vegetarian diets reduce blood pressure. The
DASH diet could easily be a vegetarian diet if legumes were substituted for
meat. Vegetarian diets tend to be higher in potassium, magnesium, and calcium,
as is the DASH diet. Vegetarian diets also are higher in fiber and unsaturated
fat than other diets.
- Controlling your weight, increasing your
physical activity, and reducing sodium in your diet will help reduce your blood
pressure even more when combined with the DASH diet.
What can I do to incorporate DASH into my lifestyle?
You can make small changes to incorporate the DASH diet into your
lifestyle. Slowly change your eating habits to fulfill the following
recommendations.
- Eat 8 to 10 servings of fruits and vegetables
each day. If you are not eating this many yet, keep track of the fruits and
vegetables you eat. Slowly add more to your diet. Check what counts as a
serving in the
food guide pyramid.
- Eat 3 servings of low-fat or nonfat dairy
foods such as milk, yogurt, and cheese.
- Limit the amount of
saturated fat you eat. Substitute
monounsaturated and polyunsaturated oils instead.
- Limit the amount of sodium in your diet by cutting down on the
amount of processed foods you eat, such as snack items, luncheon meats, and
canned soups.
See a
sample DASH menu.
Here are some ideas for
eating with DASH:
- Think about including fruits and/or vegetables
in every meal. Take fruit to work or school for a snack.
- Drink
nonfat milk. A glass of skim milk has only 80 calories and no fat and is packed
with blood pressure–lowering nutrients. Have a "skinny" latte (caffe latte made
with skim milk) as a way to add milk to your diet. If you don't drink coffee,
try a skinny almond milk.
- Make a baked potato bar. Serve baked
potatoes with a variety of vegetables, such as broccoli, and use other
toppings, such as low-fat shredded cheese, chili, salsa, and refried beans. If
you use canned or jar toppings, be sure to choose low-sodium varieties, or even
better, make them yourself from fresh ingredients. Be creative. You could end
up with 4 or 5 servings of vegetables at one meal.
- Use a variety of
cut-up vegetables with a low-fat dip as an appetizer such as hummus, instead of
high-fat chips and dips. Try some new vegetables. Make a stir-fry containing
lots of different vegetables.
- Try some vegetarian meals featuring
legumes (cooked dried beans and peas). Add garbanzo beans to a salad, use
fat-free refried beans, and/or make split pea or black bean soup. Buy a
vegetarian cookbook, and try one recipe each month or each
week.
- Combine a ready-made pizza crust with low-fat mozzarella
cheese and lots of vegetable toppings. Use tomatoes, zucchini, spinach,
carrots, cauliflower, and onions.
- For breakfast, have whole-grain
cereal, fruit, and low-fat milk.
- For a snack, have a smoothie made
with low-fat milk and frozen fruit chunks.
- Make a dip for fruit
from low-fat vanilla yogurt and cinnamon.
Test Your Knowledge
-
To start incorporating the DASH diet into my
lifestyle, I should slowly add more fruits and vegetables to my diet. My goal
is 8 to 10 servings each day.
-
True
This answer is correct.
To start with, think about changing only your
fruit and vegetable intake. Keep track of the fruits and vegetables you eat,
and slowly add more to your diet. Your goal is 8 to 10 servings a day.
-
False
This answer is incorrect.
To start with, think about changing only your
fruit and vegetable intake. Keep track of the fruits and vegetables you eat,
and slowly add more to your diet. Your goal is 8 to 10 servings a day.
-
Nonfat milk is an important part of the DASH
diet.
-
True
This answer is correct.
A glass of skim milk has only 80 calories and
no fat and is packed with blood pressure–lowering nutrients.
-
False
This answer is incorrect.
A glass of skim milk has only 80 calories and
no fat and is packed with blood pressure–lowering nutrients.
Why does adding more fruits and vegetables and low-fat dairy products to my diet help me lower my high blood pressure?
People
who eat mainly processed foods usually get too much sodium and not enough
potassium, calcium, and magnesium in their diets. Not getting enough of these
nutrients, which come from fruits, vegetables, and dairy products, may
contribute to high blood pressure.
Researchers believe that it is
the combination of 8 to 10 servings a day of fruits and vegetables and 3
servings of low-fat dairy products that causes the DASH diet to lower blood
pressure. Simply adding calcium, potassium, and magnesium supplements to the
diet does not lower blood pressure.
Good sources of potassium
All fresh fruits and vegetables and meats are
good sources of potassium. Fruit and vegetable examples include:
- Bananas, cantaloupe, oranges, and orange
juice.
- Raw or cooked spinach, lima beans, zucchini, broccoli,
carrots, cauliflower, and artichokes.
-
Potatoes.
- Legumes (cooked dried beans and peas) such as pinto
beans, chickpeas, and lentils.
A serving size of fruits and vegetables includes:
- ½ cup fruit or vegetable juice.
- ½
cup raw, canned, or cooked fruits or vegetables.
- 1 medium apple or
½ a banana.
- 1 cup raw, leafy vegetables.
Good sources of calcium
- Low-fat dairy products (yogurt, skim milk,
cheese)
A serving size is:
- 1 cup milk or yogurt.
-
1.5 oz (42.5 g) to
2 oz (56.7 g) low-fat
cheese.
Good sources of magnesium
- Legumes (cooked dried beans and peas), seeds,
and nuts
- Halibut
- Milk and yogurt
- Brown rice
and potatoes
- Tomatoes
- Bananas and
watermelon
- Leafy green vegetables
A serving size includes:
- ¾ cup cooked dry beans.
- ½ cup brown rice.
Test Your Knowledge
-
A balanced, low-fat diet that contains 8 to 10
servings each day of fresh fruits and vegetables and 3 servings each day of
low-fat dairy foods will help me lower my high blood pressure.
-
True
This answer is correct.
People who mainly eat a diet of processed foods
may not get enough potassium, calcium, and magnesium that come from eating a
balanced diet with 8 to 10 servings each day of fresh fruits and vegetables and
3 servings each day of low-fat dairy products.
-
False
This answer is incorrect.
People who mainly eat a diet of processed foods
may not get enough potassium, calcium, and magnesium that come from eating a
balanced diet with 8 to 10 servings each day of fresh fruits and vegetables and
3 servings each day of low-fat dairy products.
How can I make sure I stay with the DASH eating plan?
Ask your doctor to recommend a registered dietitian who can work with you
to change your eating habits and help you plan menus that follow the DASH
eating style. See a
sample DASH menu.
Use a form to track
your eating habits. Record everything you eat before you start DASH, charting
the number of servings you eat in the following food groups: grains;
vegetables; fruits; dairy; meats (including poultry and fish); nuts, seeds, and
beans; fats and oils; and sweets. As well as you can, record the amount of
sodium in everything you eat. After you begin the DASH eating plan, keep the
same charts, and compare your lists.
Use the following as a guide
for the DASH eating plan:
Milk and dairy
- 3 servings a day. One serving equals: 1 cup of
nonfat or low-fat milk; 1 cup of low-fat yogurt; or 1½ ounces of low-fat
cheese.
Fruits and vegetables
- 8 to 10 servings a day. One fruit serving
equals: 1 medium fruit; ¼ cup dried fruit; ½ cup frozen or canned fruit; or 4
ounces of fruit juice. One vegetable serving equals: 1 cup raw, leafy
vegetables; ½ cup cooked vegetables; or 4 ounces vegetable juice.
Grains
- 7 to 8 servings a day. One serving equals: 1
slice whole wheat bread; ½ cup dry or hot cereal; or ½ cup cooked brown rice,
pasta, or other cooked grain.
Meat, fish, poultry
- 2 servings a day. One serving equals: 3 ounces
cooked meat, poultry, or fish (about the size of a deck of cards).
Nuts, seeds, dried beans
- 4 to 5 servings a week. One serving equals: 1/3
cup nuts; 2 tablespoons seeds; or 3/4 cup cooked dried beans. Use nuts, seeds,
or dried beans to replace meat in some of your meals.
Test Your Knowledge
-
With the DASH eating plan, I don't have to worry about
the number of servings I eat as long as I get a lot of fruits and vegetables in
my diet.
-
True
This answer is incorrect.
DASH is a proven scientific method for lowering
blood pressure. If you don't follow the recommended number of servings in the
important food groups, you may not be able to lower your blood pressure.
-
False
This answer is correct.
DASH is a proven scientific method for lowering
blood pressure. If you don't follow the recommended number of servings in the
important food groups, you may not be able to lower your blood pressure.
Where to go from here
Now that you have read these
tips on following the DASH diet, you are ready to change your eating habits to
lower your high blood pressure.
For more sample menus and recipes for the DASH eating
plan, contact the National Heart, Lung, and Blood Institute. Go to
www.nhlbi.nih.gov and search for DASH. Or go to
www.nhlbi.nih.gov/health/public/heart/hbp/dash. Or write to the NHLBI Health
Information Center, P.O. Box 30105, Bethesda, MD 20824-0105, and request
information on the DASH diet.
More information about high blood pressure can be found
in the topic:
Return to topic: