Tag Archives: Nutrition

Citrus fruits could help prevent obesity-related heart disease, liver disease, diabetes

Oranges and other citrus fruits are good for you — they contain plenty of vitamins and substances, such as antioxidants, that can help keep you healthy. Now a group of researchers reports that these fruits also help prevent harmful effects of obesity in mice fed a Western-style, high-fat diet. The researchers are presenting their work […]

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Scavenger crows provide public service, research shows

Crows are performing a useful function and keeping our environment free from rotting carcasses, research carried out at the University of Exeter in Cornwall has discovered. Using motion activated cameras in and around Falmouth and the University’s Penryn Campus, Cornwall, ecologists observed what happened to experimental rat carcasses which they placed under view. The researchers […]

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Red meat consumption linked with increased risk of developing kidney failure

A new study indicates that red meat intake may increase the risk of kidney failure in the general population, and substituting red meat with alternative sources of protein from time to time may significantly reduce this risk. The findings appear in an upcoming issue of the Journal of the American Society of Nephrology (JASN). Increasing […]

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Beware of antioxidant supplements, warns scientific review

The lay press and thousands of nutritional products warn of oxygen radicals or oxidative stress and suggest taking so-called antioxidants to prevent or cure disease. Professor Pietro Ghezzi at the Brighton and Sussex Medical School and Professor Harald Schmidt at the University of Maastricht have analyzed the evidence behind this. The result is a clear […]

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Diet lacking in zinc is detrimental to human, animal health

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The trace element zinc has an impact on the essential metabolic functions of most living organisms. New research carried out by the Chair of Animal Nutrition at the Technical University of Munich (TUM) has found that even minimal zinc deficiency impairs digestion, albeit without any typical symptoms such as skin problems or fatigue. Hence, short-term […]

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How do some birds get such bright red feathers?

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In the bird world, the color red has special significance. Many species use red signals to attract mates or deter rivals, adding the color to their beaks, feathers, or bare skin. Generally speaking, as far as many birds are concerned, redder is better. Now, two teams of researchers have independently identified an enzyme-encoding gene that […]

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Don’t feed the monkeys: Why your generosity is harming their health

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Tourists who feed wild monkeys in Morocco are risking the health of an endangered species by making them larger, more susceptible to disease, and more stressed, according to new research. Behavioral ecologists compared the health of two groups of wild Barbary macaques in Ifrane National Park in the Atlas Mountains, Morocco; one which spent nearly […]

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How Arctic spring kills birds in Africa

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Red knot birds are becoming smaller as temperatures warm in their Arctic breeding grounds. But the migrating birds don’t pay the price for this climate-caused shrinkage until they arrive at the more stable climate of their tropical winter homes. Having analyzed the data collected for more than three decades, scientists managed to show that the […]

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Food limitation linked to record California sea lion pup strandings

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Large numbers of California sea lion pups have flooded animal rescue centers in Southern California in the past few years. Now, as part of an ongoing investigation into the Unusual Mortality Event of California sea lions by a team of NOAA scientists and private partners, researchers may have an explanation. Booming sea lion numbers combined […]

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Food limitation linked to record California sea lion pup strandings

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Large numbers of California sea lion pups have flooded animal rescue centers in Southern California in the past few years. Now, as part of an ongoing investigation into the Unusual Mortality Event of California sea lions by a team of NOAA scientists and private partners, researchers may have an explanation. Booming sea lion numbers combined […]

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To find energy-rich food, like tropical ripe fruit, is a challenge for chimpanzees

In our supermarkets we buy raspberries in winter and chestnuts in summer. But how challenging would life become, if we needed to consume large amounts of fruit for our daily meal and had to collect them ourselves? With a largely plant-based diet, simple stomachs, and the additional cost of maintaining relatively large brains, chimpanzees face […]

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To feed or not to feed: Researchers engage citizen scientists in reducing bird-window collisions

Getting in touch with nature in an urbanized world can be as simple as putting a bird feeder in your backyard. However, what are the potential consequences of this act? Bird-window collisions are one of the largest threats facing urban bird populations in Canada. A new study out of the University of Alberta engages citizen […]

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Blood sugar levels in response to foods are highly individual

Which is more likely to raise blood sugar levels: sushi or ice cream? According to a Weizmann Institute of Science study reported in the November 19 issue of the journal Cell, the answer varies from one person to another. The study, which continuously monitored blood sugar levels in 800 people for a week, revealed that […]

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* High-fat diet prompts immune cells to start eating connections between neurons

When a high-fat diet causes us to become obese, it also appears to prompt normally bustling immune cells in our brain to become sedentary and start consuming the connections between our neurons, scientists say. The good news is going back on a low-fat diet for just two months, at least in mice, reverses this trend […]

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Processed meat can cause cancer

The International Agency for Research on Cancer (IARC), the cancer agency of the World Health Organization, has evaluated the carcinogenicity of the consumption of red meat and processed meat. After thoroughly reviewing the accumulated scientific literature, a Working Group of 22 experts from 10 countries convened by the IARC Monographs Programme classified the consumption of […]

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* Feed supplement greatly reduces dairy cow methane emissions

A supplement added to the feed of high-producing dairy cows reduced methane emissions by 30 percent and could have ramifications for global climate change, according to an international team of researchers. In addition, over the course of the 12-week study conducted at Penn State’s dairy barns, cows that consumed a feed regimen supplemented by the […]

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Diet that mimics fasting appears to slow aging

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Study shows broad health benefits from periodic use of diet that mimics fasting in mice and yeast — which appear to translate to humans, also. A diagram of the fasting mimicking diet (FMD) protocol developed by the scientists, which retains the health benefits of prolonged fasting. In mice, FMD improved metabolism and cognitive function, decreased […]

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MRSA contamination found in supermarket sausages and minced pork in UK

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A survey carried out earlier this year has found the first evidence of the ‘superbug’ bacteria Methicillin-Resistant Staphylococcus aureus (MRSA) in sausages and minced pork obtained from supermarkets in the UK. However, researchers stress that this does not pose a significant immediate risk to the public. In February, a team of researchers funded primarily by […]

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Endangered tortoises thrive on invasive plants

Introduced plants make up roughly half the diet of two subspecies of endangered tortoise, field research in the Galapagos reveals. Tortoises seem to prefer non-native to native plants and the plants may help them to stay well-nourished during the dry season. Most research on the role of introduced species of plants and animals stresses their […]

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Food preservatives linked to obesity and gut disease

Mouse study suggests that emulsifiers alter gut bacteria, leading to the inflammatory bowel condition colitis. Chemicals known as emulsifiers are often added to processed foods such as ice cream. Artificial preservatives used in many processed foods could increase the risk of inflammatory bowel diseases and metabolic disorders, according to research published on 25 February in […]

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Test for horse meat developed

Scientists at the Institute of Food Research on the Norwich Research Park have teamed up with Oxford Instruments to develop a fast, cheap alternative to DNA testing as a means of distinguishing horse meat from beef. Because horses and cattle have different digestive systems, the fat components of the two meats have different fatty acid […]

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Calorie-restricting diets slow aging, study finds

Neuroscientists at NYU Langone Medical Center have shown that calorie-reduced diets stop the normal rise and fall in activity levels of close to 900 different genes linked to aging and memory formation in the brain. In a presentation prepared for the Society for Neuroscience annual meeting in Washington, D.C., on Nov. 17, researchers say their […]

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Junk food makes rats lose appetite for balanced diet

A diet of junk food not only makes rats fat, but also reduces their appetite for novel foods, a preference that normally drives them to seek a balanced diet, reports a study published in the open-access journal Frontiers in Psychology. The study helps to explain how excessive consumption of junk food can change behavior, weaken […]

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* Cheetah menu: Wildlife instead of cattle

Scientists from the German Leibniz Institute for Zoo and Wildlife Research (IZW) can give the all-clear: in a recent study they showed that cheetahs primarily prefer wildlife on their menu. The cheetah is a vulnerable species that only exists on Namibia’s commercial farmland in large populations. Here, local farmers see cheetahs as a potential threat […]

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Stem cells as future source for eco-friendly meat

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The scientific progress that has made it possible to dream of a future in which faulty organs could be regrown from stem cells also holds potential as an ethical and greener source for meat. So say scientists who suggest in the Cell Press journal Trends in Biotechnology that every town or village could one day […]

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Does a junk food diet make you lazy? Psychology study offers answer

A new UCLA psychology study provides evidence that being overweight makes people tired and sedentary — not the other way around. Life scientists led by UCLA’s Aaron Blaisdell placed 32 female rats on one of two diets for six months. The first, a standard rat’s diet, consisted of relatively unprocessed foods like ground corn and […]

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Low-protein diet may extend lifespan

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A new theory about the foods that can extend life is taking shape, and it’s sure to be a controversial one. Two studies out this week, one in mice and another primarily in people, suggest that eating relatively little protein and lots of carbohydrates—the opposite of what’s urged by many human diet plans, including the […]

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Dietary treatment shows potential in mouse model of Alzheimer’s disease

New research findings indicate that an early onset of dietary treatment may slow down the progression of Alzheimer’s disease. The study was conducted on mice, and the results will be published in the February issue of Journal of Nutritional Biochemistry. Researchers from the University of Eastern Finland played a key role in the study, which […]

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Primate growing up with half of the calories: New understanding about humans health and longevity

New research shows that humans and other primates burn 50% fewer calories each day than other mammals. The study, published January 13 in the Proceedings of the National Academy of Sciences, suggests that these remarkably slow metabolisms explain why humans and other primates grow up so slowly and live such long lives. The study also […]

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New DNA test identifies ingredients in foods

Almost all foodstuffs contain the genetic material of those animal and plant species that were used in their preparation. Scientists at the Institute of Molecular Genetics, Genetic Security Research and Consulting at Johannes Gutenberg University Mainz (JGU) have developed a novel screening procedure that provides for highly sensitive, quantifiable analysis of animal, plant, and microbial […]

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