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Category: Nutrition (page 1 of 6)

Even among smokers, people who eat more fiber and yogurt may be less likely to develop lung cancer

Lisa Rapaport »

Compared to people who never ate yogurt, those who consumed the most yogurt were 19% less likely to develop lung cancer, the analysis found.

People who had the most fiber in their diets, meanwhile, were 17% less likely to develop lung cancer than those who ate the least fiber.

And individuals with the highest fiber intake and highest yogurt consumption were 33% less likely than those with the lowest consumption of both to develop lung cancer, the study team reports in JAMA Oncology.

Read the whole article at Reuters »

Coconut oil is marketed as healthy, but it has more saturated fat than butter or lard

Katie Pedersen, Chelsea Gomez, Asha Tomlinson »

It’s regularly touted as a “superfood” or a “healthy fat” and is found in supermarkets and health food stores across the country.

But coconut oil is made up almost entirely of saturated fat. In a 14-gram tablespoon, about 13 grams — over 90 per cent — is saturated fat.

That’s nearly double the amount in the same volume of butter, 2.5 times as much as lard, and more than six times the saturated fat of olive oil.

Read the whole article on CBC »

Diets low in fruits and vegetables have been linked to depression

Brittany A. Roston, writing for SlashGear »

The latest research on the topic comes from the University of Toronto, which found that both men and women who eat low amounts of fruit and vegetables are more likely to suffer from depression. As well, the study found that men in particular were at a higher risk of depression if they ate high levels of fat or consumed low amounts of omega-3 fatty acids.

This isn’t the first study to find that eating more fruit and vegetables may lower depression risk, underscoring the persistent relationship between the two. Though the exact link between depression and these foods remains unclear, researchers speculate that the various beneficial compounds found in fruit and vegetables may play a role in protecting mental health.

As well, the researchers note that various nutrients — specifically, certain vitamins and minerals — found in vegetables and fruit are known to lower the plasma concentration of C-reactive protein, which is a biomarker for low levels of inflammation that has been linked to depression.

 

New study links trans fatty acids to dementia

Trans fats have been known to increase the risk for heart disease, stroke and diabetes. A new Japanese study has found that people with higher levels of trans fats in their blood were 50 to 75 percent more likely to develop Alzheimer’s disease or dementia than people with lower levels of trans fats in their blood.

American Academy of Neurology »

The study found that people with higher levels of trans fats in their blood were 50 to 75 percent more likely to develop Alzheimer’s disease or dementia years later than people with lower levels of trans fats in their blood.

The study involved 1,628 people living in a Japanese community with an average age of about 70 who did not have dementia. The level of trans fats from industrial-produced sources in the participants’ blood was measured at the beginning of the study, and they were divided into four groups based on those levels. Participants were also given a questionnaire about how often they ate certain foods.

Then they were followed for an average of 10 years. During that time, 377 people developed dementia.

Of the 407 people with the highest level of trans fats, 104 developed dementia, or an incidence rate of 29.8 per 1,000 person-years. For people with the second-highest level of trans fats, 103 of the 407 developed dementia, for an incidence rate of 27.6 per 1,000 person years. Of the 407 people with the lowest level, 82 developed dementia, an incidence rate of 21.3 per 1,000 person-years.

In 2004, Denmark was the first country to start regulating industrially-produced trans fatty acids. Today they are banned in Canada, the United States, and other jurisdictions. In the U.S. however, the Food and Drug Administration allows foods with less than 0.5 grams of trans fats to be labeled as containing zero grams of trans fats. Consequently, some foods still contain partially hydrogenated oils and could continue to pose an increased risk.

Trans fats are also typically found in foods that can be hard to resist.

The researchers also looked at which foods contributed the most to high levels of trans fats in the blood. Sweet pastries were the strongest contributor, followed by margarine, candies and caramels, croissants, non-dairy creamers, ice cream and rice crackers.

Trans fats are also found in cookies, chips, baked goods, french fries, doughnuts, popcorn.

The World Health Organization has called for trans fats to be eliminated worldwide.

Read more »

Journal Reference » Neurology, October 23, 2019

More » NY Times, The New Daily, Medical News Today, MedPageToday

Drinking fruit juice tied to increased diabetes risk

The research suggests it is healthier to consume coffee, tea, or water.

Lisa Rapaport, writing for Reuters »

After accounting for how much people weighed and their overall eating patterns, researchers found that those who increased their total consumption of sugary drinks by a half serving a day over four years were 16% more likely to develop diabetes over the next four-year period. With the same daily half-serving increase in artificially-sweetened drinks, the odds went up 18%.

Even though consumption of 100% fruit juices has been considered a healthy alternative to sugar-sweetened beverages because of the vitamins and minerals in fruit juices, they typically contain similar amounts of sugar and calories as sugar-sweetened beverages,” said Jean-Philippe Drouin-Chartier, lead author of the study and a nutrition researcher at the Harvard T.H. Chan School of Public Health in Boston.

The study results “raise concerns about the negative health effects of sugary beverages, regardless of whether the sugar is added or naturally occurring,” Drouin-Chartier said by email.

Telegraph » An extra half glass of fruit juice a day could sharply increase diabetes risk

Drinking an extra half a glass of fruit juice a day could increase the risk of diabetes by 15 per cent, research by Harvard University suggests.

The study of more than 190,000 men and women found all types of sugary soft drink were linked to a raised chance of developing type two diabetes.

Bur fruit juice appeared to carry significantly higher risks than drinks with added sugar, which appeared to increase the chance of diabetes by 9 per cent.

Diabetes U.K. » Fruit juice and diet drinks linked with increased type 2 diabetes risk

The findings showed that each half-serving increase in consumption of sugary drinks (including fruit juice) was associated with a 16% increase in risk of developing type 2 diabetes in the next four years.

The related increase in risk of type 2 diabetes, over the same time-period, for each half-serving increase in consumption of artificially sweetened beverages was 18%.

The substitution of one daily serving of a sugary drink with water, coffee or tea was associated with between a 2 and 10% lower risk of developing type 2 diabetes.

First author Jean-Philippe Drouin-Chartier, a postdoctoral fellow at Harvard University, said: “The study provides further evidence demonstrating the health benefits associated with decreasing sugary beverage consumption and replacing these drinks with healthier alternatives like water, coffee, or tea.”

More » American Diabetes Association

Eating nuts may limit weight gain

Lisa Rapaport, writing for Reuters »

People who increased their total nut consumption by a half-serving a day (14 grams, or about half an ounce) were 3% less likely to become obese, researchers report in The BMJ. Boosting daily walnut consumption by a similar amount was associated with a 15% lower obesity risk, while adding tree nuts like cashews and almonds was tied to an 11% lower obesity risk.

Increasing nuts in the diet may help maintain a healthy body weight in several ways, said senior study author Deirdre Tobias of Brigham and Women’s Hospital and Harvard Medical School in Boston.

“Their high healthy-fat and fiber content are more filling for longer compared with processed carbs and other more easily digested foods,” Tobias said by email.

“This may also benefit the overall quality of the diet by making less room for less-healthy snack foods,” Tobias added. “So, even though nuts are considered calorie-dense, their intake likely displaces other calories in the diet to improve long-term weight.”

Read more at Reuters »

Low-carb ‘keto’ diets have some health benefits and some risks

Lisa Rapaport, writing for Reuters »

While extremely low-carbohydrate diets may aid short term weight loss, they have mixed effects on health markers that can contribute to heart disease risk, according to new recommendations from the National Lipid Association.

Based on a review of existing research, the scientific statement emphasizes some advantages of a ketogenic, or very low-carb, diet including appetite suppression, lower lipid levels and lower blood sugar in people with diabetes.

But a keto diet is also associated with spikes in the “bad” cholesterol that can build up in blood vessels and lead to clots, known as low-density lipoprotein cholesterol (LDL-C).

There’s a lot more in the article that is of interest »

Certain tea bags shed billions of microplastics in each cup, and the health risks are not known

Emily Chung at the CBC writes »

“We were shocked when we saw billions of particles in a single cup of tea,” she said.

One cup from a single tea bag could contain 11.6 billion microplastic and 3.1 billion nanoplastic particles, the researchers estimated from their results, published Wednesday in the journal Environmental Science & Technology.

The bits are so tiny — on average, the size of grains of dust or pollen — that the amount in one cup is about 16 micrograms or one-sixtieth of a milligram of plastic.

Read more »

Eating a plant-based diet lowers the risk of heart disease » however a new major study suggests it may also raises the risk of strokes

So what should we eat?

The NHS’s the Eatwell Guide sets out the balance of foods you need, whatever kind of diet you eat:

  • Eat at least five portions of fruit and vegetables a day
  • Base meals around higher-fibre starchy foods such as potatoes, bread, rice or pasta
  • Don’t forget protein – from lean meat, fish, seafood, pulses, tofu or unsalted nuts
  • Include dairy or dairy alternatives
  • Foods high in fat, sugars or salt should be eaten less often and in small amounts

» Read this article by Caroline Parkinson at the BBC…

People who regularly consume soft drinks have a higher risk of an early death, with the trend seen for both sugared and artificially sweetened drinks

The team say that once factors such as body mass index, diet, physical activity, smoking and education were taken into account, that translates to a 17% higher risk of death among those consuming two glasses a day compared with those drinking less than one glass a month.

The trend was seen for both sugar-sweetened and artificially sweetened beverages. Similar results were seen for both men and women.

While sugary drinks have previously been linked to obesity, the researchers say that did not fully explain the association of high consumption with an increased risk of death.

When the team looked at specific causes of death they found frequent consumption of artificially sweetened soft drinks was associated with a higher risk of death from circulatory diseases, while sugar-sweetened soft drinks were associated with a higher risk of death from digestive disease. Soft drinks overall were also associated with a greater risk of death from Parkinson’s disease.

» Read more of the article by Nicola Davis at The Guardian…

» Updated Sept 6 » Read Death by Diet Soda? by Andrew Jacobs at the NY Times…

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