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Food

Nutrition

NEWS:

Bad News About Movie Popcorn

Battle of the Sugars: Fructose vs. Glucose “Results show individuals who drank fructose-sweetened beverages gained the same amount of weight as those who drank glucose, but fructose clearly reduced the body's sensitivity to insulin. Fructose drinkers also showed a rise in intra-abdominal fat and demonstrated signs of dyslipidemia, which is marked by increased levels of fat-soluble molecules known for making lipids in the body. These are all traits of metabolic syndrome, which increases a person's risk of heart attack.”

Cutting calories may improve memory “Why would cutting calories improve memory? One possibility is that the body becomes more efficient at processing sugar. Participants who cut calories also had lower concentrations of the hormone insulin, which regulates levels of sugar in the blood. Lower insulin suggests that the participants had become more sensitive to the hormone, and previous work has suggested that improved insulin responses can benefit the brain. In addition, Flöel and her colleagues found lower concentrations of a protein associated with inflammation in the patients who followed a restricted diet. Preliminary studies of that protein, called C-reactive protein, have shown that low concentrations are associated with improved memory in elderly people.”

Do High-fat Diets Make Us Stupid And Lazy? Physical And Memory Abilities Of Rats Affected After 9 Days “The research, funded by the British Heart Foundation and published in the FASEB Journal, may have implications not only for those eating lots of high-fat foods, but also athletes looking for the optimal diet for training and patients with metabolic disorders. "We found that rats, when switched to a high-fat diet from their standard low-fat feed, showed a surprisingly quick reduction in their physical performance," says Dr Andrew Murray, who led the work at Oxford University and has now moved to the University of Cambridge. "After just nine days, they were only able to run 50 per cent as far on a treadmill as those that remained on the low-fat feed." … The results will be important not only in informing athletes of the best diets to help their training routine, but also in developing ideal diets for patients with metabolic disorders such as diabetes, insulin resistance or obesity. People with such conditions can have high levels of fat in the blood and show poor exercise tolerance, some cognitive decline, and can even develop dementia over time. "These are startling results," says Professor Kieran Clarke, head of the research team at Oxford University. "It shows that high-fat feeding even over short periods of time can markedly affect gene expression, metabolism and physical performance. By optimising diets appropriately we should be able to increase athletes' endurance and help patients with metabolic abnormalities improve their ability to exercise and do more."

Fix-It Foods: Inflammation, Toxins, and Damaged Skin

Is sea salt better for your health than table salt?

Meatless Burgers, Hot Dogs Not Always Full of Veggies

Need an Oil Change

Too Much Sugar Is Bad, But Which Sugar Is Worse: Fructose Or Glucose? “Now, in a 10-week study, Peter Havel and colleagues, at the University of California at Davis, Davis, have provided evidence that human consumption of fructose-sweetened but not glucose-sweetened beverages can adversely affect both sensitivity to the hormone insulin and how the body handles fats, creating medical conditions that increase susceptibility to heart attack and stroke.”

ARTICLES:

Best Anti-Aging Foods

Infrequently asked questions about the Mediterranean diet. (Public Health Nutr. 2009)

Juice Wars Slideshow: The Best and Worst for Your Health

Olive oil

Organic Foods Slideshow: To Buy or Not to Buy Organic

The Benefits of Flaxseed

What Are Carbohydrates? What Is Glucose?

What Is Salt? How Much Salt Should I Eat?

JOURNAL ARTICLES:

Anatomy of health effects of Mediterranean diet: Greek EPIC prospective cohort study (BMJ 2009) “Conclusion The dominant components of the Mediterranean diet score as a predictor of lower mortality are moderate consumption of ethanol, low consumption of meat and meat products, and high consumption of vegetables, fruits and nuts, olive oil, and legumes. Minimal contributions were found for cereals and dairy products, possibly because they are heterogeneous categories of foods with differential health effects, and for fish and seafood, the intake of which is low in this population.”

Evolution of the human diet: linking our ancestral diet to modern functional foods as a means of chronic disease prevention. (J Med Food. 2009) “The evolution of the human diet over the past 10,000 years from a Paleolithic diet to our current modern pattern of intake has resulted in profound changes in feeding behavior. Shifts have occurred from diets high in fruits, vegetables, lean meats, and seafood to processed foods high in sodium and hydrogenated fats and low in fiber. These dietary changes have adversely affected dietary parameters known to be related to health, resulting in an increase in obesity and chronic disease, including cardiovascular disease (CVD), diabetes, and cancer. Some intervention trials using Paleolithic dietary patterns have shown promising results with favorable changes in CVD and diabetes risk factors. However, such benefits may be offset by disadvantages of the Paleolithic diet, which is low in vitamin D and calcium and high in fish potentially containing environmental toxins. More advantageous would be promotion of foods and food ingredients from our ancestral era that have been shown to possess health benefits in the form of functional foods. Many studies have investigated the health benefits of various functional food ingredients, including omega-3 fatty acids, polyphenols, fiber, and plant sterols.”

Position of the American Dietetic Association: vegetarian diets. (J Am Diet Assoc. 2009)

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