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Eating these six foods may help you live longer

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Hundreds of studies, most of them conducted in Western countries, have tied higher intakes of fruits, vegetables, nuts, beans, lentils and fish to a lower risk of coronary heart disease, stroke and Type 2 diabetes.

Now, findings from McMaster University in Hamilton extend the power of such a healthy diet on a global scale.

What’s more, the results indicate that whole fat dairy belongs in this portfolio of protective foods.

About the global study

The latest findings come from the Prospective Urban Rural Epidemiology (PURE) study, a large-scale, long-running multinational study involving 166,762 individuals, 35 to 70 years of age, from 21 low, middle- and hig- income countries on five continents.

For the current study, the researchers used dietary data previously collected from PURE participants to develop a new “PURE healthy diet score.”

They then examined the relationship between participants’ healthy diet scores and the risk of premature death and cardiovascular disease in the PURE study, as well as in five independent international studies with a total of 97,000 participants.

The PURE healthy diet score

The diet score was based on six food categories – fruit, vegetables, legumes, nuts, fish, dairy (mostly whole fat) – each of which has been associated with longevity in past studies.

Fruit included fresh fruit; dried and canned; fruit juices were excluded. Vegetables excluded potatoes, canned vegetables and pickles.

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Legumes included beans (kidney beans, black beans, pinto beans, navy beans, lentils, chickpeas) and peas and black-eyed peas. Dairy included milk, yogurt, yogurt drinks, cheese and mixed dishes prepared with dairy; butter and whipped cream were excluded.

A value of 0 (unhealthy) to 1 (healthy) was assigned to each of the six components, based on a participant’s intake of each. Diet scores ranged from 0 to 6, with higher scores indicating a healthier diet.

Study findings

Participants in the group with the highest diet scores achieved a score of at least five.

They consumed, each day, five servings of fruits and vegetables, about one-quarter cup of nuts (28 g) and two dairy servings, mainly from whole fat milk, yogurt and/or cheese. (One serving of dairy was defined a one cup of milk, one cup of yogurt or one-half ounce of cheese.)

Their diets also consisted of three to four one-half cup servings of legumes and 6.5 ounces of fish each week.

Compared to PURE study participants with the lowest healthy diet scores (one point or less), those with the highest scores were 30 per cent less likely to die of any cause over the nine-year study period.

They also had a significantly lower risk of heart attack, stroke and death from cardiovascular disease.

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The researchers accounted for other risk factors that could influence the results, including age, waist circumference, physical activity, smoking status, history of diabetes and socioeconomic status.

Similar protective effects were observed for having a high PURE diet score in the five independent international studies.

A notable strength of this new study is its size and diversity; it included 244,957 people from 80 countries at different economic levels from five continents.

Whole fat versus low fat dairy

This isn’t first the study to suggest that whole fat dairy – e.g., milk and yogurt with 3.3 per cent milk fat, cheese with 31 per cent milk fat – provides health benefits.

Findings from recent observational studies suggest that higher intakes of dairy, including whole fat dairy, may protect from heart disease, stroke and death from cardiovascular disease.

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Previous data from the PURE study, published in 2020, showed that consuming two to three servings of dairy a day (versus none) was associated with a lower risk of developing hypertension and Type 2 diabetes. Whole fat dairy was especially beneficial.

Whole fat dairy contains potentially beneficial compounds including high quality protein, unique fatty acids and many vitamins and minerals. As well, bioactive peptides (short chains of amino acids) in fermented dairy products (yogurt, cheese) are thought to improve how the body uses insulin.

Takeaways

These new findings don’t mean you should fill up on ice cream and cheese.

Rather, the takeaway is that two daily servings of whole fat dairy (milk, yogurt and/or cheese) can be part of a healthy diet – and here’s the key – a diet that also contains decent amounts of fruits, vegetables, nuts, legumes and fish.

Keep in mind, too, that this healthy PURE diet isn’t high in saturated fat. It’s in line with Health Canada’s advice to consume less than 10 per cent of daily calories from saturated fat.

Leslie Beck, a Toronto-based private practice dietitian, is director of food and nutrition at Medcan. Follow her on Twitter @LeslieBeckRD

 

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Canada to donate up to 200,000 vaccine doses to combat mpox outbreaks in Africa

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The Canadian government says it will donate up to 200,000 vaccine doses to fight the mpox outbreak in Congo and other African countries.

It says the donated doses of Imvamune will come from Canada’s existing supply and will not affect the country’s preparedness for mpox cases in this country.

Minister of Health Mark Holland says the donation “will help to protect those in the most affected regions of Africa and will help prevent further spread of the virus.”

Dr. Madhukar Pai, Canada research chair in epidemiology and global health, says although the donation is welcome, it is a very small portion of the estimated 10 million vaccine doses needed to control the outbreak.

Vaccine donations from wealthier countries have only recently started arriving in Africa, almost a month after the World Health Organization declared the mpox outbreak a public health emergency of international concern.

A few days after the declaration in August, Global Affairs Canada announced a contribution of $1 million for mpox surveillance, diagnostic tools, research and community awareness in Africa.

On Thursday, the Africa Centres for Disease Control and Prevention said mpox is still on the rise and that testing rates are “insufficient” across the continent.

Jason Kindrachuk, Canada research chair in emerging viruses at the University of Manitoba, said donating vaccines, in addition to supporting surveillance and diagnostic tests, is “massively important.”

But Kindrachuk, who has worked on the ground in Congo during the epidemic, also said that the international response to the mpox outbreak is “better late than never (but) better never late.”

“It would have been fantastic for us globally to not be in this position by having provided doses a much, much longer time prior than when we are,” he said, noting that the outbreak of clade I mpox in Congo started in early 2023.

Clade II mpox, endemic in regions of West Africa, came to the world’s attention even earlier — in 2022 — as that strain of virus spread to other countries, including Canada.

Two doses are recommended for mpox vaccination, so the donation may only benefit 100,000 people, Pai said.

Pai questioned whether Canada is contributing enough, as the federal government hasn’t said what percentage of its mpox vaccine stockpile it is donating.

“Small donations are simply not going to help end this crisis. We need to show greater solidarity and support,” he said in an email.

“That is the biggest lesson from the COVID-19 pandemic — our collective safety is tied with that of other nations.”

This report by The Canadian Press was first published Sept. 13, 2024.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

The Canadian Press. All rights reserved.

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How many Nova Scotians are on the doctor wait-list? Number hit 160,000 in June

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HALIFAX – The Nova Scotia government says it could be months before it reveals how many people are on the wait-list for a family doctor.

The head of the province’s health authority told reporters Wednesday that the government won’t release updated data until the 160,000 people who were on the wait-list in June are contacted to verify whether they still need primary care.

Karen Oldfield said Nova Scotia Health is working on validating the primary care wait-list data before posting new numbers, and that work may take a matter of months. The most recent public wait-list figures are from June 1, when 160,234 people, or about 16 per cent of the population, were on it.

“It’s going to take time to make 160,000 calls,” Oldfield said. “We are not talking weeks, we are talking months.”

The interim CEO and president of Nova Scotia Health said people on the list are being asked where they live, whether they still need a family doctor, and to give an update on their health.

A spokesperson with the province’s Health Department says the government and its health authority are “working hard” to turn the wait-list registry into a useful tool, adding that the data will be shared once it is validated.

Nova Scotia’s NDP are calling on Premier Tim Houston to immediately release statistics on how many people are looking for a family doctor. On Tuesday, the NDP introduced a bill that would require the health minister to make the number public every month.

“It is unacceptable for the list to be more than three months out of date,” NDP Leader Claudia Chender said Tuesday.

Chender said releasing this data regularly is vital so Nova Scotians can track the government’s progress on its main 2021 campaign promise: fixing health care.

The number of people in need of a family doctor has more than doubled between the 2021 summer election campaign and June 2024. Since September 2021 about 300 doctors have been added to the provincial health system, the Health Department said.

“We’ll know if Tim Houston is keeping his 2021 election promise to fix health care when Nova Scotians are attached to primary care,” Chender said.

This report by The Canadian Press was first published Sept. 11, 2024.

The Canadian Press. All rights reserved.

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Newfoundland and Labrador monitoring rise in whooping cough cases: medical officer

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ST. JOHN’S, N.L. – Newfoundland and Labrador‘s chief medical officer is monitoring the rise of whooping cough infections across the province as cases of the highly contagious disease continue to grow across Canada.

Dr. Janice Fitzgerald says that so far this year, the province has recorded 230 confirmed cases of the vaccine-preventable respiratory tract infection, also known as pertussis.

Late last month, Quebec reported more than 11,000 cases during the same time period, while Ontario counted 470 cases, well above the five-year average of 98. In Quebec, the majority of patients are between the ages of 10 and 14.

Meanwhile, New Brunswick has declared a whooping cough outbreak across the province. A total of 141 cases were reported by last month, exceeding the five-year average of 34.

The disease can lead to severe complications among vulnerable populations including infants, who are at the highest risk of suffering from complications like pneumonia and seizures. Symptoms may start with a runny nose, mild fever and cough, then progress to severe coughing accompanied by a distinctive “whooping” sound during inhalation.

“The public, especially pregnant people and those in close contact with infants, are encouraged to be aware of symptoms related to pertussis and to ensure vaccinations are up to date,” Newfoundland and Labrador’s Health Department said in a statement.

Whooping cough can be treated with antibiotics, but vaccination is the most effective way to control the spread of the disease. As a result, the province has expanded immunization efforts this school year. While booster doses are already offered in Grade 9, the vaccine is now being offered to Grade 8 students as well.

Public health officials say whooping cough is a cyclical disease that increases every two to five or six years.

Meanwhile, New Brunswick’s acting chief medical officer of health expects the current case count to get worse before tapering off.

A rise in whooping cough cases has also been reported in the United States and elsewhere. The Pan American Health Organization issued an alert in July encouraging countries to ramp up their surveillance and vaccination coverage.

This report by The Canadian Press was first published Sept. 10, 2024.

The Canadian Press. All rights reserved.

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