Heart Association urges everyone to develop good eating habits
By AMERICAN HEART ASSOCIATION
- In
a new statement on diet and heart health, the American Heart Association
presents 10 key features of a heart-healthy eating pattern that can help
reduce heart disease and stroke risk at all stages of life.
- The
new statement emphasizes an overall dietary pattern to support
cardiovascular health and general wellbeing that accommodates personal
preferences, ethnic and religious practices, and life stages.
- For
the first time, the Association summarizes evidence that addresses sustainability,
noting that heart-healthy eating patterns are also good for the
environment.
- Also
for the first time, the statement enumerates several challenges including
societal factors that make it more difficult to adopt or maintain a
heart-healthy eating pattern and suggests public health measures to
address these challenges, including early introduction of food and
nutrition education at all school levels.
The American Heart Association has outlined 10 key features of a heart-healthy eating pattern in a new scientific statement that emphasizes the importance of overall dietary pattern rather than individual foods or nutrients and underscores the critical role of nutrition in all stages of life.
These features can be adapted to accommodate individual food
likes and dislikes, cultural traditions and whether most meals are consumed at
home or on-the-go, according to the statement, “2021 Dietary Guidance to
Improve Cardiovascular Health,” published November 2, 2021 in the
Association’s flagship journal Circulation.
The new statement reflects the latest scientific evidence on the benefits of heart-healthy eating throughout life and that poor diet quality is strongly associated with an increased risk of cardiovascular disease and death. The statement emphasizes the importance of looking at the total dietary pattern rather than “good” or “bad” individual foods or nutrients.
A dietary pattern refers to the balance, variety, amounts, and
combination of foods and beverages regularly eaten. The statement also
highlights the critical role of nutrition education, starting healthy eating
early in life and maintaining throughout the lifespan, as well as societal and
other challenges that may make it harder to adopt or maintain a heart-healthy
diet pattern.
“We can all benefit from a heart-healthy dietary pattern regardless of stage of life, and it is possible to design one that is consistent with personal preferences, lifestyles and cultural customs. It does not need to be complicated, time consuming, expensive or unappealing,” said Chair of the scientific statement writing group Alice H. Lichtenstein, D.Sc., FAHA, senior scientist and director of the Cardiovascular Nutrition Team at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University in Boston.
Because food is often eaten in places besides
the home, the statement emphasizes that it is possible to follow a
heart-healthy dietary pattern regardless of whether food is prepared at
home, ordered in a restaurant or online, or purchased as a
prepared meal.
“You can absolutely adapt a heart-healthy diet
to different lifestyles,” said Lichtenstein, who is also the Stanley N.
Gershoff Professor of Nutrition Science and Policy at the Friedman School of
Nutrition Science and Policy, “including one that incorporates eating out at
restaurants. It might take a little planning, however, after the first few
times it can become routine.”
The statement details 10 features of a dietary pattern to promote heart health:
- Balance
food and calorie intake with physical activity to maintain a healthy
weight.
- Choose
a wide variety and eat plenty of fruits and vegetables to get a full range
of nutrients from food rather than supplements;
- Choose
whole grains and other foods made up mostly of whole grains;
- Include
healthy sources of lean and/or high-fiber protein such as plant proteins
(nuts and legumes), fish or seafood, low fat or non-fat dairy, lean cuts
of meat and limit red and processed meats;
- Use
liquid non-tropical plant oils such as olive or sunflower oils;
- Choose
minimally processed foods rather than ultra-processed foods as much as
possible;
- Minimize
intake of beverages and foods with added sugars;
- Choose
or prepare foods with little or no salt;
- Limit
alcohol consumption; if you don’t drink, do not start; and
- Apply
this guidance no matter where food is prepared or consumed.
Processed foods include meats that are preserved by
smoking, curing or adding chemical preservatives, and plant-based foods that
have added salt, sugar or fats. Many processed meats are high in salt,
saturated fat and cholesterol. Research shows that replacing processed meat
with other protein sources is associated with lower death rates.
Ultra-processed foods are those that go beyond added salt, sweeteners or fat to
also include artificial colors, flavors and preservatives that promote shelf
stability, preserve texture and increase palatability.
A heart-healthy diet is good for a lifetime.
Nutrition plays a critical role in heart health
throughout life, according to the statement. A heart-healthy diet and healthy
lifestyle behaviors – such as regular physical activity and avoiding exposure
to tobacco products – are key from childhood throughout adulthood to lower the
risk of developing elevated “bad” cholesterol levels, high blood
pressure, obesity, type 2 diabetes and metabolic syndrome, each of which can
increase heart disease risk.
Before and during pregnancy, women who eat a heart-healthy
diet can reduce heart disease risk factors, which may help to prevent unhealthy
weight gain in their children. Evidence shows that the prevention of childhood
obesity is key to preserving and prolonging heart health through the life span.
Later in life, people who eat a heart-healthy diet have slower age-related
declines in thinking abilities and memory.
“The evidence indicates that people of all ages
can benefit from sticking to the principles of a heart-healthy dietary
pattern,” said Lichtenstein. “Likewise, it is important to educate children at
all ages so as they transition into adulthood, they will be able to make
informed decisions about what they eat and serve as positive role models for
generations to come.”
A heart-healthy diet can also help the environment.
For the first time, the issue of sustainability
is included in the Association’s dietary guidance. Commonly consumed animal
products, particularly red meat (beef, lamb, pork, veal, venison or goat), have
the largest environmental impact in terms of water and land usage, and
contribute significantly to greenhouse gas emissions. Hence, shifting reliance
from meat to plant proteins can help to improve individual health and the
environment.
“It is important to recognize that the guidance
is consistent not only with heart health but also sustainability – it is a
win-win for individuals and our environment,” said Lichtenstein.
However, the statement notes, not all
sustainable diets are heart healthy. For example, if a plant-based diet includes
lots of refined carbohydrates and added sugars, the risk of type 2 diabetes and
heart disease increases.
Societal challenges are needed to support heart-healthy eating.
For the first time, the 2021 dietary guidance
discusses several challenges that can make it harder to adopt or maintain a
heart-healthy diet. These include:
- Widespread
dietary misinformation from the Internet;
- A
lack of nutrition education in grade schools and medical schools;
- Food
and nutrition insecurity – According to references cited in the statement,
an estimated 37 million Americans had limited or unstable access to safe
and nutritious foods in 2020;
- Structural
racism and neighborhood segregation, whereby many communities with a
higher proportion of racial and ethnic diversity have few grocery stores
but many fast-food outlets; and
- Targeted
marketing of unhealthy foods and beverages to people from diverse racial
and ethnic backgrounds through tailored advertising efforts and
sponsorship of events and organizations in those communities.
Public health action and policy changes are
required to address these challenges and barriers, according to the statement.
“Creating an environment that promotes and
supports adherence to heart-healthy dietary patterns among all individuals is a
public health imperative,” the statement concludes.
On an individual level, the new statement
reinforces a 2020 American Heart Association statement for health care professionals that
encouraged routine assessment of patients’ dietary quality and inclusion of
this information in the medical record so there is follow-up at the next
appointment.
Reference: 2 November 2021, Circulation.
DOI: 10.1161/CIR.0000000000001031
This scientific statement was prepared by the
volunteer writing group on behalf of the American Heart Association’s Council
on Lifestyle and Cardiometabolic Health; the Council on Arteriosclerosis,
Thrombosis and Vascular Biology; the Council on Cardiovascular Radiology and
Intervention; the Council on Clinical Cardiology; and the Stroke Council.