Tuesday January 28, 2020

Avoid Cheese Omelettes For a Healthier Heart

The guidelines also include weekly egg consumption as part of a healthy diet

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US, cheesemakers
At the gala event to announce the winner at the U.S. Cheese Championship, ticket-holders got to sample dozens of cheeses, including the always-popular cheddar, in Green Bay, Wis., March 7, 2019. VOA

Do you savour cheese omelettes? If so, think again as consuming more eggs and dietary cholesterol may up the risk of cardiovascular disease (CVD) and death from any cause, researchers have warned.

The study suggests that egg yolks are one of the richest sources of dietary cholesterol among all commonly consumed foods. One large egg has 186 milligrams of dietary cholesterol in the yolk.

“The take-home message is really about cholesterol, which happens to be high in eggs and specifically yolks,” said co-author Norrina Allen, Associate Professor at the Northwestern University.

“As part of a healthy diet, people need to consume lower amounts of cholesterol.People who consume less cholesterol have a lower risk of heart disease,” Allen added.

For the study, which will be published in the journal JAMA, the team involved 29,615 adults from six prospective cohort studies for up to 31 years of follow up.

They found eating 300 mg of dietary cholesterol per day was associated with 17 per cent higher risk of incident cardiovascular disease and 18 per cent higher risk of all-cause deaths.

Cheesemakers, US
Guests at the U.S. Cheese Championship gala could help themselves to samples from a giant wheel of Swiss cheese that had been among the cheeses judged in the competition, in Green Bay, Wis., March 7, 2019. VOA

The cholesterol was the driving factor independent of saturated fat consumption and other dietary fat, the team said.

Eating three to four eggs per week was associated with 6 per cent higher risk of CVD and 8 per cent higher risk of any cause of death, they added.

The researchers say that eating less than 300 milligrams of dietary cholesterol per day was the guideline recommendation before 2015. However, the most recent dietary guidelines omitted a daily limit for dietary cholesterol.

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The guidelines also include weekly egg consumption as part of a healthy diet. An adult in the US gets an average of 300 milligrams per day of cholesterol and eats about three or four eggs per week.

Other animal products such as red meat, processed meat and high-fat dairy products (butter or whipped cream) also have high cholesterol content, said lead author Wenze Zhong from the varsity. (IANS)

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Know About the Health Benefits of Walnuts

Eat walnuts daily for better gut, heart health

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Walnuts
Walnuts could lead to better heart health. Pixabay

Walnuts may not just be a tasty snack, they may also promote good-for-your-gut bacteria, say researchers, adding that these ‘good’ bacteria could lead to better heart health.

The study, published in the Journal of Nutrition, suggests walnut as a part of healthy diet may be a heart- and gut-healthy nut.

Additionally, those changes in gut bacteria were associated with improvements in some risk factors for heart disease.

“Substantial evidence shows that small improvements in diet greatly benefit health. Eating two to three ounces of walnuts a day as part of a healthy diet could be a good way to improve gut health and reduce the risk of heart disease,” said study researcher Kristina Petersen from Penn State University in the US.

Walnuts
Walnuts as a part of healthy diet may be a heart- and gut-healthy nut. Pixabay

According to the researchers, another research has found that changes to the bacteria in the gastrointestinal tract — also known as the gut microbiome — may help explain the cardiovascular benefits of walnuts.

For the study, the researchers recruited 42 participants with overweight or obesity who were between the ages of 30 and 65.

Before the study began, participants were placed on an average American diet for two weeks.

After this “run-in” diet, the participants were randomly assigned to one of three study diets, all of which included less saturated fat than the run-in diet.

 

Walnuts
Researchers found that after consuming walnuts, there were significant associations between changes in gut bacteria and risk factors for heart disease. Pixabay

The diets included one that incorporated whole walnuts, one that included the same amount of alpha-linolenic acid (ALA) and polyunsaturated fatty acids without walnuts, and one that partially substituted oleic acid (another fatty acid) for the same amount of ALA found in walnuts, without any walnuts.

In all three diets, walnut or vegetable oils replaced saturated fat, and all participants followed each diet for six weeks with a break between diet periods.

 

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The researchers also found that after the walnut diet, there were significant associations between changes in gut bacteria and risk factors for heart disease.

According to the study, Eubacterium eligens was inversely associated with changes in several different measures of blood pressure, suggesting that greater numbers of Eubacterium eligens was associated with greater reductions in those risk factors. (IANS)