Navigation Links
A new study by John Hopkins University proposes formula for good health

A healthy diet that replaces some carbohydrates with either protein or monounsaturated fat can substantially reduce blood pressure and cholesterol levels, resulting in a substantial reduction in overall risk of heart disease, // according to government-funded studies by researchers at Johns Hopkins and elsewhere.

The Hopkins team found that shifting about 10 percent of calories from carbohydrate to either protein-rich food, mostly from plant sources, or to monounsaturated fats, contained in olive and canola oil, and provided a major benefit to the heart.

"Our study provides strong evidence that replacing some carbohydrate with either protein or monounsaturated fat has important health benefits," says internist Lawrence Appel, M.D., M.P.H., a professor of medicine at the Johns Hopkins School of Medicine and lead author of the study. "There is already agreement that reducing saturated fat lowers risk for heart disease, but the question of which macronutrient to emphasize has been controversial."

Appel makes clear that his study does not support extremely high-saturated-fat, low-carbohydrate diets such as the Atkins diet, which he says is not a healthy diet plan.

The study, called the Optimal Macronutrient Intake Trial to Prevent Heart Disease (OmniHeart), evaluated three healthy diets that differed mainly in the amount of macronutrients - protein, fat and carbohydrate - that provide calories used for energy in the body. All three diets were low in saturated fat, cholesterol and sodium, and rich in fruits, vegetables, fiber, potassium and other minerals. However, one diet was a traditional healthy diet, rich in carbohydrate, while in the other two diets approximately 10 percent of its calories from carbohydrate were replaced with either monounsaturated fat or protein. In the protein-rich diet, about half came from plants.

"All three diets reduced overall heart disease risk, lowering blood pressure and improving cho lesterol levels," says Appel. "But the protein and monounsaturated fat diets had an edge over the carbohydrate-rich diet."

The Hopkins findings from OmniHeart, to be presented Nov. 15 at the American Heart Association's Scientific Sessions 2005 and published simultaneously in the Journal of the American Medical Association, underscore the significant benefits from making dietary changes, the researchers say.

Overall, the protein-rich diet, derived from plant and animal sources, decreased cardiovascular disease risk by 21 percent. "Many people equate protein with meat, but it is not the only source of protein," says study co-author Phyllis McCarron, M.S., R.D., a dietitian at Hopkins. "Excellent plant sources of protein are beans, nuts, seeds and certain grains."

The monounsaturated fat diet, enriched with olive and canola oils, as well as various nuts and seeds, decreased risk by almost 20 percent.

The carbohydrate-rich diet used in the study decreased risk by roughly 16 percent. The carbohydrate-rich diet is similar to the Dietary Approaches to Stop Hypertension, or DASH diet, which Appel helped develop in 1997.

For the current study, which lasted about three years, researchers enlisted 164 generally healthy adults, both men and women ages 30 and over. "Because of the huge risk of stroke and heart attack in African Americans, the results are particularly applicable to this group, who made up roughly 55 percent of study participants," says study co-author Jeanne Charleston, R.N., a research associate at Hopkins' Bloomberg School of Public Health. Charleston adds that all participants either had high blood pressure (almost 20 percent) or were on the verge of having high blood pressure.

For six-week intervals, participants ate all of their food - including breakfast, lunch, dinner and snacks - from one of the three diets. After a two-to-four-week break, participants started the six-week feeding period o ver again, this time with a different diet. The process was repeated until all participants ate all three.

Researchers monitored each participant's levels of blood pressure, cholesterol and triglycerides on each diet. These measurements were then factored into a standard mathematical model, called the Framingham risk equation, for estimating heart disease risk.

According to Appel, the OmniHeart study results reconfirm the powerful effects of a diet-based approach to improving someone's cardiovascular risk profile, for blood pressure and cholesterol levels, and lowering their overall risk of heart disease. The OmniHeart Collaborative Research Group, which conducted this study, plans further research on the effects of carbohydrate on heart disease and its risk factors.

Source: John Hopkins Medical institute
'"/>




Related medicine news :

1. A new study surpasses Gene Therapy Hurdle
2. A question on study of Adult Stem Cell
3. Marijuana gateway theory strengthened by study of twins
4. Old theory of adaptation confirmed by new study
5. Gene study links endometriosis, infertility
6. Mutant sperm beat out healthy brethren in study
7. New study questions consumption of milk for bone growth
8. New study questions consumption of milk for bone growth
9. Going to GP may delay cancer diagnosis, says new study
10. Drug addiction can be genetical, says study
11. Autism epidemic is a myth- says a new study
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... October 13, 2017 , ... Dickinson ... offers insurance and financial preparation services, is providing an update on a charitable ... , Rock City Rescue is a locally recognized nonprofit that provides shelter and ...
(Date:10/13/2017)... ... ... While it’s often important to take certain medications during the night, finding them ... a solution. , She developed a prototype for MOTION LIGHT-UP PILL BOX to provide ... need to turn on a light when taking medication during the night, allowing the ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... process to promote standards of excellence for the field of eating disorders, announces ... 22 – 25, 2018 in Orlando, Florida at the Omni Resort at ChampionsGate. ...
(Date:10/13/2017)... ... October 13, 2017 , ... Southern ... and Jennifer Huggins, PharmD ’17, along with clinical associate professor Janice Frueh, ... cardiovascular diseases during the 15th Annual Women’s Health Conference. The SIU School ...
(Date:10/13/2017)... ... ... Apple Rehab Shelton Lakes , which specializes in the delivery of ... part of a disaster drill on October 3rd. , Apple Rehab participated with the ... as well as the Connecticut Long Term Care Mutual Aid Plan (LTC-MAP). The ...
Breaking Medicine News(10 mins):
(Date:9/12/2017)... Sept. 12, 2017   EcoVadis , the leading platform for environmental, ... first annual edition of its Global CSR Risk and Performance Index. The ... EcoVadis, based on Scorecard Ratings that analyzed nearly 800,000 data points across ... ... ...
(Date:9/12/2017)... SAN FRANCISCO , Sept. 12, 2017 /PRNewswire/ ... Lifecycle Management Solutions (VLMS), is pleased to announce ... as a member of its Board of Directors ... 2017. ValGenesis VLMS enables life science companies to ... eliminate the use of paper in this process. ...
(Date:9/9/2017)... -- Dealmed Medical Supplies, New York City,s ... drugs, vaccines, and specialty medical products and services, announced ... acquire Vantage Medical Supplies, a major distributor of medical ... York . ... practices, will operate under the Dealmed name as of ...
Breaking Medicine Technology: