If
you're a cheese lover, you will welcome the results of this new study with open
arms. Researchers suggest that eating around 40 grams (or 1.41 ounces) of
cheese every day could help to reduce the risk of heart disease and stroke.
These new findings come from
an analysis of 15 observational studies that looked at the effects of cheese
intake on the risk of cardiovascular disease (CVD).
Study co-author Li-Qiang
Qin — who works in the Department of Nutrition and Food Hygiene at Soochow
University's School of Public Health in China — and colleagues report
their results in the European Journal of Nutrition.
Cheese is undoubtedly one
of our favorite foods. In 2015, the population of the United States consumed
the equivalent of 37.1 pounds of cheese per person, with Cheddar
and mozzarella being the most popular choices.
While cheese contains
some nutrients that are beneficial to health — such as calcium, zinc, and vitamins A and B-12 — it
is also high in saturated fats, which can increase cholesterol levels and raise
the risk of heart disease and stroke.
The new study, however,
suggests that this popular dairy product could have the opposite effect on
cardiovascular health.
CVD risk reduced by up to
18 percent
For their study, Qin and
colleagues conducted a meta-analysis of 15 observational studies that
investigated how cheese consumption influenced the total risk of CVD, as well
as the risks of coronary heart
disease (CHD) and stroke.
In total, the studies
included more than 200,000 participants, and the effects of cheese intake were
monitored for more than 10 years. The majority of studies included subjects who
were free of CVD at study baseline.
The analysis revealed
that people who regularly consumed cheese were up to 18 percent less likely to
develop CVD, up to 14 percent less likely to develop CHD, and up to 10 percent
less likely to have a stroke, compared with those who had a low cheese intake.
The scientists report
that these effects were strongest among participants who consumed around 40
grams, or 1.41 ounces, of cheese every day. In conclusion, they write:
"This meta-analysis of prospective studies suggests a nonlinear
inverse association between cheese consumption and risk of CVD."
Be cautious
The team's findings build
on those of a widely publicized observational analysis that was published earlier this year, which linked cheese and
other dairy products to a reduced risk of cardiovascular and all-cause
mortality.
But don't stock up on the
Cheddar just yet; both studies have their own limitations. Importantly, they
are observational, so they do not prove a causal association between cheese
intake and better cardiovascular health.
What is more, both studies have links to the dairy industry; the
earlier study received funding from the Global Dairy Platform, Dairy Research
Institute, and Dairy Australia, while the latest study was conducted with the
help researchers from the Yili Group, a dairy company based in China.
However, it is hard to
conclude whether these associations had any influence on the study results.
Until additional studies
confirm such findings, it is important to remember that cheese is high in
saturated fats, which can be harmful to heart health in high amounts.
The American Heart
Association (AHA) recommend that around 5–6 percent of our daily caloriesshould come from
saturated fats, and to switch to low-fat dairy products to help stay within
this limit.
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