Category Archives: saturated fats

May 26, 2020 · 12:05 am

Chemists develop foolproof test to track fats we consume – McMaster U

A team of researchers at McMaster University has developed a reliable and accurate blood test to track individual fat intake, a tool that could guide public health policy on healthy eating.

Establishing reliable guidelines has been a significant challenge for nutritional epidemiologists until now, because they have to rely on study participants faithfully recording their own consumption, creating results that are prone to human error and selective reporting, particularly when in the case of high-fat diets.

For the study, published in the Journal of Lipid Research, chemists developed a test, which detects specific non-esterified fatty acids (NEFAs), a type of circulating free fatty acid that can be measured using a small volume of blood sample.

“Epidemiologists need better ways to reliably assess dietary intake when developing nutritional recommendations,” says Philip Britz-McKibbin, professor in the Department of Chemistry & Chemical Biology at McMaster  and lead author of the study

“The food we consume is highly complex and difficult to measure when relying on self-reporting or memory recall, particularly in the case of dietary fats.  There are thousands of chemicals that we are exposed to in foods, both processed and natural,” he says.

The study was a combination of two research projects Britz-McKibbin conducted with Sonia Anand in the Department of Medicine and Stuart Phillips in the Department of Kinesiology.

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May 21, 2020 · 12:17 am

Just one meal with saturated fat may cloud mental focus -Study

Fatty food may feel like a friend during these troubled times, but new research suggests that eating just one meal high in saturated fat can hinder our ability to concentrate – not great news for people whose diets have gone south while they’re working at home during the COVID-19 pandemic.

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The study compared how 51 women performed on a test of their attention after they ate either a meal high in saturated fat or the same meal made with sunflower oil, which is high in unsaturated fat. Continue reading →

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April 19, 2020 · 12:03 am

Plant-based diet helps to prevent and manage asthma – Study

A plant-based diet can help prevent and manage asthma, while dairy products and high-fat foods raise the risk, according to a new review published in Nutrition Reviews.

Asthma is a common chronic condition in which the airways become narrow and inflamed–sometimes leading to difficulty with breathing, coughing, wheezing, and shortness of breath.

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“Asthma is a condition that affects more than 25 million Americans, and unfortunately it can make people more vulnerable in the COVID-19 outbreak,” says study author Hana Kahleova, MD, PhD, director of clinical research for the Physicians Committee. “This research offers hope that dietary changes could be helpful.” Continue reading →

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April 12, 2020 · 12:15 am

Why the Low-Fat Diet Failed – Tufts

In the 1980s and 1990s, Americans were told that eating less fat would reduce risk for cardiovascular disease and obesity. Why didn’t it work? Essentially, reducing total fat led to intake of more refined carbohydrates and less healthy fats, and both of these changes had negative health impacts.

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Evolving Guidelines: Dietary advice on fat intake has evolved over the years. Based on strong evidence that diets high in saturated fats and cholesterol were associated with high blood cholesterol levels and a greater risk of heart attack, the 1980 U.S. Dietary Guidelines recommended Americans “avoid too much fat, saturated fat, and cholesterol.” The 1990 Dietary Guidelines added risk for obesity to the list of reasons to cut back on fats. (Since a gram of fat has more than twice the calories of a gram of protein or carbohydrate, reducing fat intake is the fastest way to reduce calorie intake.) But, soon thereafter, data began to emerge that low-fat diets were not having the expected results. “The 2000 Dietary Guidelines Advisory Committee noted the adverse effects of low-fat diets, and for the first time since their inception changed the guidance from low fat to moderate fat,” says Alice H. Lichtenstein, DSc, a member of that committee who is now a senior scientist at Tufts’ HNRCA and executive editor of Tufts Health & Nutrition Letter. From 2000 on, the Dietary Guidelines for Americans (DGA) recommended consuming a diet moderate in total fat that keeps saturated fat intake to under 10 percent of calories. The 2015 DGA emphasizes consuming foods rich in polyunsaturated fat. Some scientists feel that even this moderate fat restriction goes too far. Dariush Mozaffarian, MD, DrPH, dean of Tufts’ Friedman School of Nutrition Science and Policy and editor-in-chief of Tufts Health & Nutrition Letter sites evidence that a higher proportion of calories from fat is not harmful for either cardiovascular disease (CVD) or obesity, and in fact can lower risk if healthy (poly- and mono-unsaturated) fats replace refined starches and sugars. Continue reading →

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August 13, 2019 · 4:03 pm

Some common sense ideas on fat- Tufts

Fat is a much maligned element of the modern diet. High-fat, Low-fat, Fat-free – which way to go? Here are some common sense observations from Tufts Health & Nutrition Letter.

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Fat (especially unsaturated fat) is part of a healthy dietary pattern. If you have a fear of fats, try these tips:

-Include healthy fats from reasonable quantities of vegetable oils, nuts, fish, and avocados

-Avoid “reduced-fat” foods high in refined carbohydrates and added sugars

-Limit red and processed meats, butter, and tropical oils

-Strive for a balanced diet that includes (healthy) fats, (mainly unrefined) carbohydrates, and protein (from sources other than red and processed meats) Continue reading →

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December 8, 2016 · 12:45 pm

Saturated fat could be good for you

A Norwegian study challenges the long-held idea that saturated fats are unhealthy

Regular readers know that I am a big supporter of coconut oil – a saturated fat. You can check out my Page – Coconut oil – Why you should include it in your diet for more details.

A new Norwegian diet intervention study (FATFUNC), performed by researchers at the KG Jebsen center for diabetes research at the University of Bergen, raises questions regarding the validity of a diet hypothesis that has dominated for more than half a century: that dietary fat and particularly saturated fat is unhealthy for most people.

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The researchers found strikingly similar health effects of diets based on either lowly processed carbohydrates or fats. In the randomized controlled trial, 38 men with abdominal obesity followed a dietary pattern high in either carbohydrates or fat, of which about half was saturated. Fat mass in the abdominal region, liver and heart was measured with accurate analyses, along with a number of key risk factors for cardiovascular disease.

“The very high intake of total and saturated fat did not increase the calculated risk of cardiovascular diseases,” says professor and cardiologist Ottar Nygård who contributed to the study. Continue reading →

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October 28, 2016 · 6:25 am

Harvard study sheds light on dairy fat cardiovascular disease risk

Because  low fat diets were the rage for a while, people have become confused about the value and necessity of including fats in their diets. I love coconut oil, a saturated fat. I eat it every day and have a Page of information – Coconut Oil – Why you should include it in your diet on it.

Until recently, when you visited the dairy aisle, chances are you headed straight for the blue carton of milk—the skim milk that is. But recent buzz about dairy fat may cause shoppers to pause in front of the oft-shunned red carton of whole milk or other full-fat dairy products, as research suggests that their relationship to heart health is more complex than was once believed. While most studies to date have focused on the association between dairy fat and cardiovascular risk factors, few have examined the relationship to actual onset of cardiovascular disease.

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July 12, 2016 · 5:11 am

Harvard study links high unsaturated fat consumption to reduced mortality

Consuming higher amounts of unsaturated fats was associated with lower mortality, according to a study from Harvard T.H. Chan School of Public Health.

In a large study population followed for more than three decades, researchers found that higher consumption of saturated and trans fats was linked with higher mortality compared with the same number of calories from carbohydrates. Most importantly, replacing saturated fats with unsaturated fats conferred substantial health benefits. This study provides further support for the 2015-2020 Dietary Guidelines for Americans that emphasize the types of fat rather than total amount of fat in the diet.

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The traditional meat and potatoes dinner is not the way to go.

The study is the most detailed and powerful examination to date on how dietary fats impact health. It suggests that replacing saturated fats like butter, lard, and fat in red meat with unsaturated fats from plant-based foods—like olive oil, canola oil, and soybean oil—can confer substantial health benefits and should continue to be a key message in dietary recommendations. (My emphasis)

The study was published online July 5, 2016 in JAMA Internal Medicine. Continue reading →

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August 15, 2015 · 8:26 pm

Trans Fats, Not Saturated Fats, Linked to Greater Risk of Death and Heart Disease

“For years everyone has been advised to cut out fats. Trans fats have no health benefits and pose a significant risk for heart disease, but the case for saturated fat is less clear,” said de Souza.

Regular readers know that I have been beating the drum for the saturated fat – coconut oil for some time. Check out my Page – Coconut Oil – Why you Should Include it in Your Diet to read more about it.

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Cooking with Kathy Man

A study led by researchers at McMaster University has found that that trans fats are associated with greater risk of death and coronary heart disease, but saturated fats are not associated with an increased risk of death, heart disease, stroke, or Type 2 diabetes.

The findings were published today by the British Medical Journal (BMJ). The lead author is Russell de Souza, an assistant professor in the Department of Clinical Epidemiology and Biostatistics with the Michael G. DeGroote School of Medicine.

“For years everyone has been advised to cut out fats. Trans fats have no health benefits and pose a significant risk for heart disease, but the case for saturated fat is less clear,” said de Souza.

“That said, we aren’t advocating an increase of the allowance for saturated fats in dietary guidelines, as we don’t see evidence that higher limits would be specifically beneficial to health.”

Guidelines currently recommend…

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