Featured Research

from universities, journals, and other organizations

Less salt in teenagers' diet may improve heart health in adulthood

Date:
November 15, 2010
Source:
American Heart Association
Summary:
Small decreases in salt consumption among teens could reduce high blood pressure, heart disease and stroke in adulthood. Processed foods and fast foods, pose high salt hazards to families and teens. Researchers say food manufacturers should continue to reduce salt levels in their products.

Eating smaller amounts of salt each day as a teenager could reduce high blood pressure, heart disease and stroke in adulthood, according to research presented at the American Heart Association's Scientific Sessions 2010.

Conducting a sophisticated computer modeling analysis, researchers projected the nationwide health effects of a 3-gram reduction in dietary salt from processed foods consumed by adolescent boys and girls.

Teenagers eat more salt each day -- more than 9 grams (3,800 milligrams of sodium) -- than any other age group, researchers said. The American Heart Association recommends no more than 1,500 milligrams of sodium per day for most Americans.

By reducing the salt teenagers eat each day by 3 grams, researchers projected through modeling a 44 percent to 63 percent (380,000 to 550,000) decrease in the number of hypertensive teenagers and young adults. They estimated a 30 percent to 43 percent decrease (2.7 to 3.9 million) in the number of hypertensives at ages 35 to 50.

"Reducing the amount of salt that is already added to the food that we eat could mean that teenagers live many more years free of hypertension," said Kirsten Bibbins-Domingo, Ph.D., M.D., lead author of the study and associate professor of medicine and epidemiology at the University of California, San Francisco. "The additional benefit of lowering salt consumption early is that we can hopefully change the expectations of how food should taste, ideally to something slightly less salty."

A one-gram-per-day reduction in salt consumption results in a small drop of systolic blood pressure of 0.8 mm Hg, she said. "Reducing the salt in the teenage diet from an average of 9 grams to 6 grams would get teenage boys and girls to appropriate levels of salt intake."

Measurable health benefits over time as teenagers reach age 50 would include:

  • 7 percent to 12 percent reduction in coronary heart disease (120,000 to 210,000)
  • 8 percent to14 percent reduction in heart attacks (36,000 to 64,000)
  • 5 percent to 8 percent reduction in stroke (16,000 to 28,000)
  • 5 percent to 9 percent reduction in death from any cause (69,000 to 120,000)

About 80 percent of salt comes from processed or prepared foods -- 35 percent of that in cereals, breads and pastries.

"The hidden places of salt in our diet are in breads and cereals, canned foods and condiments, and of course fast foods," said Bibbins-Domingo, also co-director of the UCSF Center for Vulnerable Populations. "Most of the salt that we eat is not from our salt shaker, but salt that is already added in food that we eat."

Pizza is the biggest culprit of salt for teens according to data from the National Center for Health Statistics.

Manufacturers should continue to reduce salt in their foods in cooperation with local, state, and federal regulatory agencies, she said. Many major companies have already joined the National Sodium Reduction initiative and have voluntarily agreed to work to lower the salt content that is already added to processed and prepared foods.

Co-authors are: Pamela Coxson, Ph.D.; Tekeshe Mekonnen, M.S.; David Guzman, M.S.; and Lee Goldman, M.D., M.P.H. Author disclosures are on the abstract.

The American Heart Association funded the study.


Story Source:

The above story is based on materials provided by American Heart Association. Note: Materials may be edited for content and length.


Cite This Page:

American Heart Association. "Less salt in teenagers' diet may improve heart health in adulthood." ScienceDaily. ScienceDaily, 15 November 2010. <www.sciencedaily.com/releases/2010/11/101114161821.htm>.
American Heart Association. (2010, November 15). Less salt in teenagers' diet may improve heart health in adulthood. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2010/11/101114161821.htm
American Heart Association. "Less salt in teenagers' diet may improve heart health in adulthood." ScienceDaily. www.sciencedaily.com/releases/2010/11/101114161821.htm (accessed September 18, 2014).

Share This



More Plants & Animals News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chimp Violence Study Renews Debate On Why They Kill

Chimp Violence Study Renews Debate On Why They Kill

Newsy (Sep. 17, 2014) The study weighs in on a debate over whether chimps are naturally violent or become that way due to human interference in the environment. Video provided by Newsy
Powered by NewsLook.com
Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins