New research has shown that excessive salt consumption has
played a role in over two millions heart-related deaths worldwide in 2010
alone, with 40% of those deaths premature. The study was detailed at the American Heart
Association’s meeting in New Orleans on March 21, 2013. Researchers looked at 247 surveys of adults
that participated in the 2010 Global Burden of Disease Survey, an international
collaboration between researchers from 50 countries worldwide. Time summarized
the investigation’s scope and methods:
[Study participants]
reported on their sodium intake from 1990 to 2010 in food questionnaires.
Overall, adults around the world ate an average of 4,000 mg of sodium a day,
either from prepared foods or from table salt, soy sauce or additional salt
sprinkled into meals while cooking. That’s twice the amount recommended by the World Health Organization
(2,000 mg per day) and nearly three times the amount the AHA says is healthy (1,500 mg per day).
Researcher’s reported that salt’s impact on global health
has been substantial. A second study
that was a meta-analysis of 107 randomized controlled trials helped to show the
effects of excess sodium consumption and its impact of people’s risk of cardiovascular
disease around the globe. Highlights
include:
·
Among
the 30 largest countries, the highest death rates due to excess salt
consumption per million adults were Ukraine (2,109); Russian (1,803); and Egypt
(836).
·
The
United States ranked 19th out of the 30 largest countries, with 429
salt-related deaths per million adults (which translates to 1 in 10
heart-related deaths in the U.S., according to the study authors).
·
Among
all countries surveyed (187 in total), those with the lowest salt-related death
rates per million adults were Qatar (73); Kenya (78); and United Arab Emirates
(134).
·
84%
of deaths occurred in low and middle-income countries
·
Kenya
was reportedly the only country surveyed to adhere to the AHA's recommended
1,500 mg/day limit.
·
The
highest proportion of cardiovascular disease related deaths tied to salt-laden
diets were in the Philippines, Myanmar and China.
Time also included a details from the Salt
Institute:
The Salt Institute
criticized the study, noting that the added heart-disease risk was compared
with an unrealistically low level of salt consumption that no country in the
world met. “This latest AHA statistical study on the worldwide mortality from
dietary salt is misleading and totally devoid of genuine evidence,” said Morton
Satin, vice president of science and research for the Salt Institute, in a statement. “Using a highly flawed statistical model,
researchers simply projected potential reductions in mortality without
considering all known health risks resulting from low salt intake.”
Adults aren’t the only ones at
risk. Other research discussed at the
AHA meeting included some that showed children are already consuming too much
salt. The high sodium content in many
prepackaged meals and snacks that are aimed at kids can force them into eating
unhealthy amounts. According to the data
presented, about 75% of pre-packaged meals are high in sodium, defined as
containing more than 210 mg per serving.
The study found that toddler meals could contain up to 630 mg of sodium
per serving.
“Our concern is the
possible long-term health risks of introducing high levels of sodium in a
child’s diet, because high blood pressure, as well as a preference for salty
foods, may develop early in life. The less sodium in an infant’s or toddler’s
diet, the less he or she may want it when older,” said lead author Joyce
Maalouf, a fellow at the National Center for Chronic Disease Prevention and
Health Promotion at the Centers for Disease Control and Prevention in Atlanta,
in a statement.
The AHA advised people to remember that salt doesn’t only
come from the shaker but can be found in many of the packaged foods consumed
each day. Because this is often hidden,
they advise closely reviewing the nutrition facts on foods that you don’t make
yourself. They also advise that when
cooking at home, keep a close eye on the amount of salt added to foods and try
to substitute with other flavors such as herbs and spices or lemon juice to
trick taste buds into thinking they are getting the “salt”
they are looking for.