In earlier studies of the health effects of fatty fish, researchers have addressed a mixture of fish species. Helen Lindqvist, a doctoral candidate at the Division for Food Science at Chalmers, can now present the health effects of herring alone.
"The combination of various compounds is rather similar among fatty fish species," she reports.
"Herring is extremely rich in omega 3 fatty acids, vitamin D, selenium, and vitamin B12, compounds that most people need to eat more of. But one of the greatest advantages of herring is there is still lots of it available. Today only a small fraction of herring catches is used for food. Most of it goes to animal fodder. It would be more resource-effective if we ate more herring, instead of grinding catches into fishmeal to feed salmon, for example."Helen Lindqvist carried out four studies, three on humans and one on rats, in which she was able to demonstrate several health benefits of consuming herring: The content of "good cholesterol," HDL, increased in the blood of humans. In the rat study the content of oxidation products declined in the blood, and the size of fat cells and blood lipid content both improved. The omega 3 fatty acids EPA and DHA in the blood increase with the ingestion of fatty fish, which in turn was shown to be associated with less atherosclerosis in humans.
All of these factors are clearly related to cardiovascular diseases and/or diabetes.
Most the health effects of herring are due to its content of omega 3 fatty acids, which are found in fish oil. But Helen Lindqvist has also shown that parts of the fish other than its oil are healthful, by dividing up the fish into various fractions in one of the studies. The liquid fraction--which does not contain fatty acids-reduced the amount of oxidation products in the blood. In other words, herring contains antioxidants that are lost if you substitute fish oil capsules for fish. What's more, whole herring contains a number of proteins and vitamins.
"Not everyone loves the typical herring taste, but it's not at all noticeable in some of the recipes," she says. "Herring can be prepared like any other fish-Thai-inspired or with curry, for example."The dissertation "Influence of Herring (Clupea harengus) Intake on Risk Factors for Cardiovascular Disease" was defended on June 13.
Dissertation abstract, see link below
Pictures can be downloaded, se link belowFor more information, please contact:
Sofie Hebrand | idw
Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT
Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
08.12.2016 | Life Sciences
08.12.2016 | Physics and Astronomy
08.12.2016 | Materials Sciences