Navigation Links
Hawaiian treasure, macadamia nuts good for the heart

Incorporating macadamia nuts into a heart healthy diet can reduce cardiovascular disease risks according to Penn State researchers.

"We looked at macadamia nuts because they are not currently included in the health claim for tree nuts, while other tree nuts are recommended as part of a healthy diet," says Dr. Amy E. Griel, recent Ph.D. recipient in nutritional sciences. "Macadamia nuts have higher levels of monounsaturated fats, like those found in olive oil compared with other tree nuts."

The researchers used a controlled feeding study to compare a heart-healthy diet with 1.5 ounces ?a small handful ?of macadamia nuts to a standard American diet. The participants had slightly elevated cholesterol levels, normal blood pressure and were not taking lipid lowering drugs. Researchers randomly assigned participants to either the macadamia nut diet or the standard American diet and provided all meals for the participants for five weeks. The participants then switched diets and continued eating only food provided by the researchers for another five weeks.

The Healthy Heart diet with macadamia nuts did reduce total cholesterol, low-density lipoprotein cholesterol and triglyceride levels compared with the standard American diet.

"We observed a reduction in LDL similar to that seen with other tree nuts like walnuts and almonds," says Griel.

Individual calorie levels were used for each participant so that they did not gain or lose weight during the study. Both diets were matched for total fat, containing 33 percent calories from total fat. The Heart Healthy diet with macadamia nuts had 7 percent saturated fat, 18 percent monounsaturated fat and 5 percent polyunsaturated fat. The standard American diet had 13 percent saturated fat, 11 percent monounsaturated fat and 5 percent polyunsaturated fat.

The macadamia nut diet included macadamia nuts as a snack, mixed into meals, as a salad topping and in cookies and muffins.

"The total fat was the same in both diets," says Griel. "We substituted the macadamia nuts for other sources of fat and protein in the diet. For example, we could switch skim milk for 2 percent milk and add some macadamia nuts."

Macadamia nuts are native to Australia, but were imported to Hawaii and thrived. The first commercials crop of Hawaiian macadamia nuts was harvested in 1956.


'"/>

Source:Penn State


Related biology news :

1. Finding hidden invaders in a Hawaiian rain forest
2. First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands
3. Single stem cells from bone heal a broken heart
4. Global study shows all tobacco bad for the heart
5. New study shows antibiotic may protect the heart
6. Getting to the heart of the heart
7. How fish mend a broken heart
8. Slowing the racing heart
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... KONG , March 30, 2017 The ... a system for three-dimensional (3D) fingerprint identification by adopting ground breaking ... into a new realm of speed and accuracy for use in ... at an affordable cost. ... ...
(Date:3/29/2017)... CHICAGO , March 29, 2017  higi, the ... ecosystem in North America , today ... Partners and the acquisition of EveryMove. The new investment ... extensive set of tools to transform population health activities ... and lifestyle data. higi collects and secures ...
(Date:3/27/2017)... N.Y. , March 27, 2017  Catholic ... Information and Management Systems Society (HIMSS) Analytics for ... EMR Adoption Model sm . In addition, CHS ... of U.S. hospitals using an electronic medical record ... for its high level of EMR usage in ...
Breaking Biology News(10 mins):
(Date:8/14/2017)... (PRWEB) , ... August 14, 2017 , ... The ... Trials event, which will take place on September 6, 2017 at the Marriott ... MD , Head of Experimental Medicine, Informatics, and Regulatory Strategy, Pfizer Innovative Research Lab, ...
(Date:8/11/2017)... ... August 11, 2017 , ... A staple in the community for more than ... important key elements including a new digital marketing strategy and updated logo. , As ... Miller has partnered with the South Texas Blood & Tissue Center for the month ...
(Date:8/11/2017)... ... August 11, 2017 , ... “There is an increasing ... alternatives to synthetic ingredients,” said Matt Hundt, President of Third Wave Bioactives. “Combining ... presence and know-how of Biorigin will allow us to bring truly novel fermented ...
(Date:8/10/2017)... ... August 09, 2017 , ... Teachers from three ... From August 14th through the 16th, the University City Science Center will kick ... of 2016, provides Philadelphia-based middle school educators an opportunity for professional development related ...
Breaking Biology Technology: