Wednesday December 12, 2018

Low Fat Diets do not Curb Heart Disease

However, a recent data shows that replacing saturated fats and trans fatty acids with omega 6 fatty acids, without a corresponding rise in omega 3 fatty acids, seems to increase the risk of death from coronary heart and cardiovascular diseases

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Stay healthy with dried fruits, health bars. Pixabay
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In a setback to those who have switched to low-saturated fat diets for better heart health, a leading US cardiovascular research scientist has claimed diets low in saturated fat or based on Omega 6 fats do not curb heart disease risk or help you live longer.

“Current dietary advice to replace saturated fats with carbohydrates or omega 6-rich polyunsaturated fats is based on flawed and incomplete data from the 1950s,” declared James DiNicolantonio in the medical journal Open Heart.

The best diet to boost and maintain heart health is one low in refined carbohydrates, sugars and processed foods, he recommended.

Anyone who has had a heart attack should not be thinking of replacing saturated fats with refined carbs or omega 6 fatty acids — particularly those found in processed vegetable oils containing large amounts of corn or safflower oil, he added.

“Dietary guidelines should be urgently reviewed and the vilification of saturated fats stopped to save lives,” he insisted.

DiNicolantonio said the idea that fat causes heart disease was based on a flawed 1950s study which used data from six countries but excluded data from another 16.

This study “seemingly led us down the wrong ‘dietary road’ for decades to follow”, he said.

low fat
In the race to cut saturated fat intake, several dietary guidelines recommend upping polyunsaturated fat intake. Pixabay

There is now a strong argument in favour of the consumption of refined carbohydrates as the causative dietary factor behind the surge in obesity and diabetes in the US.

While a low fat diet may lower ‘bad’ (LDL) cholesterol, there are two types of LDL cholesterol.

“Switching to carbs may increase pattern B (small dense) LDL which is more harmful to heart health than pattern A (large buoyant) LDL, as well as creating a more unfavourable overall lipid profile,” DiNicolantonio noted.

In the race to cut saturated fat intake, several dietary guidelines recommend upping polyunsaturated fat intake.

Also Read: Stem Cell Thearpy To Treat Heart-Failure

However, a recent data shows that replacing saturated fats and trans fatty acids with omega 6 fatty acids, without a corresponding rise in omega 3 fatty acids, seems to increase the risk of death from coronary heart and cardiovascular diseases.

“We need a public health campaign as strong as the one we had in the 70s and 80s demonising saturated fats, to say that we got it wrong,” urged DiNicolantonio.

“Eating a Mediterranean-style diet rich in fruit, veg, pulses and fish would help lower cholesterol and reduce the risk of coronary heart disease,” he suggested. (IANS)

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Weight Lifting Proven Better Than Walking And Cycling To Keep Heart Diseases At Bay

For the study, the researchers included 4,086 adults aged 21 to 44 or over 45

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Weight Lifting
Weightlifting better than walking and cycling for heart: Study. Pixabay

While it is well known that physical activities promote heart health, a new study suggests that weightlifting, rather than walking and cycling, can better help keep heart diseases at bay.

The study showed that engaging in both static activities such as strength training and dynamic activities like walking and cycling was associated with 30 to 70 per cent lower rates of cardiovascular disease risk factors.

But, the associations were strongest for strength training among youth than older adults.

“Both strength training and aerobic activity appeared to be heart healthy, even in small amounts, at the population level,” said Maia P. Smith, Assistant Professor at St. George’s University in Grenada.

“However, static activity appeared more beneficial than dynamic,” Smith added.

Lift Weights
Lift Weights. Pixabay

Further, the researchers suggested that clinicians should counsel patients, especially the elderly, to exercise regardless of activity types as patients who did both types of physical activity fared better than patients who simply increased the level of one type of activity.

“The important thing is to make sure they are engaging in physical activity,” Smith said.

The findings were presented at the ACC Latin America Conference 2018 in Peru.

Also Read- Xiaomi Drops Down Smartphone Prices in India

For the study, the researchers included 4,086 adults aged 21 to 44 or over 45.

The team analysed cardiovascular risk factors, such as high blood pressure, obesity, diabetes and high cholesterol, as a function of self-reported static and/or dynamic activity. (IANS)