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Stay healthy with dried fruits, health bars. Pixabay

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.


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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Indian astronomers have found an active galaxy in a very bright state with 10 times more X-ray emission than normal

Indian astronomers have found an active galaxy in a very bright state with 10 times more X-ray emission than normal, equivalent to more than 10 trillion of the sun, and located five billion light years away that could help probe how particles behave under intense gravity and acceleration to the speed of light.

It could help study the role of strong gravity and acceleration of matter in the formation, interaction and evolution of galaxies in the early universe.

Every galaxy in the universe is believed to host a supermassive black hole at its centre. In some galaxies, the black hole is actively devouring a large amount of material and shooting a jet of plasma almost at the speed of light towards us. These are called blazars.

OJ 287 belongs to a class of blazars known as BL Lacertae objects which show very rapid and large amplitude flux variations but barely discernible emission line features.

This class of sources emit in the whole electromagnetic spectrum, a rather uncommon phenomenon which requires extreme physical conditions. Hence, a study of such sources tells us about the behaviour of matter in an extreme gravitational field where it is difficult for light to escape from the vicinity of the black hole.

Astronomers at Aryabhatta Research Institute of Observational Sciences, an autonomous institute of the Department of Science and Technology, Government of India, have been monitoring one such black hole system named 'OJ 287' since 2015. This source shows a repeated optical brightness enhancement almost every 12 years.

"The repeated optical enhancement makes OJ 287 very intriguing as this class of sources does not show any repeating features in flux variations. The repeated optical enhancement made the researchers believe that the system hosts a binary black hole," said a release from the Ministry of Science and Technology.

In 2020, the source was very bright at optical and X-ray bands with X-ray flux more than 10 times the normal (non-active phase) flux. This flare was very different as it was not expected in models proposed for this source and thus, indicated a more complex system and physical conditions.

Investigating the extreme brightness shown by OJ 287 at optical and X-ray bands, astronomers led by Pankaj Kushwaha and Alok C. Gupta reported the source in a completely new spectral state.

The team argued that this change of state holds clues to the researcher's quest to understand how matter behaves in very strong gravity and how it accelerates the particle to almost the speed of light -- a feat that is out of the scope of even the most advanced CERN accelerator.

The research published in 'The Astrophysical Journal' tracked the details of changes in optical to the X-ray emission spectrum of the source with time from 2017 to 2020 -- after the second brightest X-ray flare of the source. It revealed how the source gradually started to change its spectral behaviour from mid-2018 to the new spectral state in 2020.

The study included data recorded by the ground-based facility operated by Physical Research Laboratory, Ahmedabad, operated Mount Abu observing facility in near infra-red bands and the space-based NASA's satellites -- the Niels Gherel Swift satellite at optical, UV and X-rays with gamma ray data from the Fermi satellite, the release added. (IANS/JB)

Keywords: Science, NASA, Satellites, Black Hole, Gravity, India


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Tospread awareness about the significance of reading, Rachna Kalra, who hails from Gurugram (Haryana), started the Silent Book Club in the year 2019.

Who doesn't like reading, and that, too, reading along the company of mother nature? Well, this book club is truly a fantasy turned to reality.

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Ninety-eight per cent of Indian travellers say they want to stay in a sustainable accommodation in the coming year.

A Travel Sustainable badge, provides highly coveted information to travellers all over the world looking to make more sustainable travel choices. Booking.com has launched the Travel Sustainable Badge, a first of its kind in the industry, designed to be applicable to a wide range of property types, from apartments, B&Bs, and vacation homes to hotels, resorts, and even treehouses, and adaptable to local realities and considerations.

Ninety-eight per cent of Indian travellers say they want to stay in a sustainable accommodation in the coming year, and with more than 28 million listings on Booking.com, the company sees a huge opportunity to highlight more of the impactful efforts its partners are making to create more sustainable experiences, making it easier for travellers to find a sustainable way to stay.

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With 88 percent of Indian travellers indicating that they would be more likely to choose a specific accommodation that implements sustainable practices, it rewards and encourages providers to take the next steps on their individual sustainability journeys.

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