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Matti Narkia

Vitamin-exercise study questioned - 0 views

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    Reports that vitamins C and E may blunt the positive effects of exercise are misleading, according to an antioxidant expert. German researchers have reported that antioxidant vitamins C and E may blunt the positive effects of exercise, with respect to insulin sensitivity. Findings were published in the Proceedings of the National Academy of Sciences. Reacting to the study , Alexander Schauss, PhD, from AIBMR Life Sciences, a nutraceutical products consultancy, told NutraIngredients.com that the title of the study (Antioxidants prevent health-promoting effects of physical exercise in humans) was misleading. "The primary objective of this study was to study the effect of a 4-week intensive 5-days a week exercise program on insulin sensitivity. Yet the title of the paper leads one to believe otherwise," he said. "This is a small gender-biased study of 40 male subjects, 25 to 35 years of age. When I read through the study for the first time I had to wonder how could the authors have come up with such a title for their paper?" he asked.
Matti Narkia

DHA revisions offer hope to health claim rejections - 0 views

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    "The affirmation that the omega-3 DHA can benefit cognitive and eye health offers hope to previously rejected claims. And it's business as usual regarding the overall health claims process, despite ratification of the Lisbon Treaty, said a European Commission representative. At the NutraIngredients Health Claims 2010 conference in Brussels, the EC's Lars Korsholm explained the regulatory state-of-play for DHA claims. "I think it will offer some hope to previously rejected claims in the sense that these claims that are now subject for discussion are generic in the sense that if other food business operators than those who actually submitted the application can claim to fulfill the conditions of use then they are equally entitled to use the claim," explains Korsholm. The statements come in relation to an October decision whereby the European Food Safety Authority (EFSA) affirmed that the omega-3 fatty acids, DHA and ALA, can benefit eye and cognitive development in babies. Responding to the public comment period for Merck Selbstmedikation GmbH's article 14 cognitive development claim that was rejected in March, EFSA affirmed its original stance that there was no need for additional supplementation of DHA (docosahexaenoic acid) and ALA (alpha-linolenic acid) because it already existed at adequate levels in the diet. It supported their role in foetal and newborn eye and brain development but said there was an adequate supply in breast milk. "
Matti Narkia

Four times current vitamin D doses needed for winter levels: Study - 0 views

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    Maintaining adequate levels of vitamin D during winter months requires a daily dose of 20 micrograms, four times the current recommended dose, says a new study. The study, led by Susan Sullivan from the University of Maine, has important implications for ongoing consultations on vitamin D recommendations, with the current level of five micrograms (200 International Units) seen by many as insufficient.
Matti Narkia

Antioxidants may 'block' benefits of exercise: Study - 0 views

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    Supplements of antioxidant vitamins after exercise may decrease the benefits of the workout by blocking the positive effects of reactive oxygen, says a new study. Researchers from Germany and the US report in the Proceedings of the National Academy of Sciences that a combination of 1,000 mg per day of vitamin C and 400 IU per day of vitamin E adversely affected insulin sensitivity, and thereby increase the risk of type 2 diabetes. Participants, both trained and untrained, underwent 85 minutes of exercise five days per week for four weeks.
Matti Narkia

Antioxidant vitamins may protect against female cancer - 0 views

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    Increased intakes of vitamins C and E and beta-carotene may reduce the risk of cancer of the uterus, according to a new review and meta-analysis of the science to date. Writing in Cancer Causes and Control, US scientists report that for every 1,000 microgram increase per 1,000 kcal of diet of beta-carotene was associated with a 12 per cent reduction in the risk of endometrial cancer.
Matti Narkia

Vitamin K may reverse arterial calcification - study - 0 views

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    Arterial calcification, a process of hardening of the arteries, may be inhibited and even reversed with supplementation with high-dose vitamin K, suggests an animal study.
Matti Narkia

Broccoli extract's heart health benefits pinpointed? - 0 views

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    A compound found in vegetables like broccoli, cabbage and cauliflower, may protect arteries from disease by boosting a natural defence mechanism, says a new study from the UK. Researchers from Imperial College London (ICL) report that sulforaphane, a compound most widely associated with broccoli, may activate a protein called Nrf2 in arteries, according to findings published in Arteriosclerosis Thrombosis and Vascular Biology. While the protein is normally protective, in areas of arteries that are susceptible to disease the London-based researchers found that Nrf2 is inactive.
Matti Narkia

Omega-3 EPA could be sourced from biodiesel: Researchers - 0 views

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    Fungal treatment of a biodiesel byproduct can produce the omega-3 fatty acid EPA (eicosapentaenoic acid), offering a potentially economical source of EPA from microbes.\nGrowing the fungus Pythium irregulare in a crude glycerol and a yeast extract can lead to production of an EPA-rich biomass that could be used as an omega-3 fortified food, according to researchers from Virginia Polytechnic Institute and State University and the USDA's Agricultural Research Service.\n\nThe findings are published online ahead of print in the Journal of Agricultural and Food Chemistry.
Matti Narkia

White button mushrooms appear to boost immune function - Tufts Journal: Briefs: Healthy... - 0 views

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    White button mushrooms appear to boost immune function It appears that a little fungus may be good for what ails you. That's the conclusion of a new study that found that eating white button mushrooms may boost the immune system and protect against infection. If the research, done on animals, translates to people, it could raise the health-benefit profile of the fungus, which also contains high concentrations of the super-antioxidant ergothioneine, which protects cells from damaging free radicals. "This is the first published study showing the effect of white button mushrooms on immune function," Dayong Wu, a scientist in the Immunology Laboratory at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts and lead author of the study, published in the June issue of the Journal of Nutrition, told NutraIngredients.com. The research also suggests that the mushroom may boost both innate and acquired immune system health. The innate immune system, the one you're born with, is the body's first line of defense. The acquired immune system revs up if a pathogen makes its way past the innate system and customizes the immune response to target the invader.
Matti Narkia

Pine bark extract may boost diabetic eye health - 0 views

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    "Supplements of French maritime pine bark extract may improve the flow of blood in the tiny blood vessels of the retina, and enhance sight in diabetics with early stage eye problems, says a new study. Visual acuity, or the clearness of vision, was found to improve from 14/20 to 17/20 in people with early stage retina damage associated with diabetes (diabetic retinopathy) following daily supplements of the pine bark extract, Pycnogenol, for two months. Forty-six diabetics participated in the randomised controlled study with the findings published in the Journal of Ocular Pharmacology and Therapeutics. "Our study suggests that Pycnogenol taken in the early stages of retinopathy may enhance retinal blood circulation accompanied by a regression of oedema, which favourably improves vision of patients," said lead researcher Dr Robert Steigerwalt. "Pycnogenol may be particularly beneficial for preventing this complication in diabetic patients, based on the large number of individuals who were diagnosed when the disease had already significantly progressed"
Matti Narkia

Vitamins can be useful, says FDA - 1 views

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    "The US Food and Drug Administration has advised consumers that certain vitamin supplements "can be useful", stating that "there are many good reasons" to consider taking them. The consumer advisory, released this week in video and text format, comes at a time of increased pressure on the supplements industry, with media outlets repeatedly questioning the usefulness and safety of dietary supplements. "Supplements can be useful when they fulfill a specific identified nutrient need that can't be met by food or is not being met through normal food intake," said Barbara Schneeman, PhD, director of FDA's Office of Nutritional Products, Labeling, and Dietary Supplements. The message is one that dietary supplement trade groups have consistently tried to get across, with campaigns such as CRN's Lifeā€¦supplemented set up to communicate the importan Vitamins for the right reasons According to FDA's consumer update - Fortify Your Knowledge About Vitamins - there are many good reasons to consider taking vitamin supplements, which could be recommended by a doctor in a number of situations, including: * For certain health problems * When following a vegetarian or vegan diet * When pregnant or breastfeeding Iron and folic acid are important for pregnant women or women of childbearing age, to be consumed via a varied diet or from fortified foods and supplements, says FDA. People over 50 should consume vitamin B12, and those with darker skin or with insufficient exposure to sunlight should consume extra vitamin D, again via fortified foods or supplements."
Matti Narkia

Vitamin C-rich foods may boost artery health - 0 views

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    Increased intake of vitamin C-rich foods may reduce the risk of hardening of the arteries, and ultimately protect against heart disease, says a new study from Norway.\nWriting in the journal Nutrition, Metabolism and Cardiovascular Diseases, researchers from Ulleval University Hospital in Norway report that increased intakes of vitamin C and fruit and berries were associated with less thickening of the carotid artery.
Matti Narkia

Vitamin K help for diabetes? - 0 views

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    The vitamin K dependant protein osteocalcin may have a positive effect on reducing obesity and diabetes, suggests a new study with mice.\nResearchers writing in the journal Cells studied the effect bone cells have in energy regulation, and found that osteocalcin plays a key role in regulating insulin activity.
Matti Narkia

Vitamin K2, but not K1, effective for heart health benefits: Study - 0 views

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    Increased intakes of vitamin K2, but not vitamin K1, may decrease the risk of coronary heart disease in postmenopausal women, says a new study.\nFor every 10 microgram increase in the amount of vitamin K2 consumed, researchers from the Netherlands report a 9 per cent reduction in the risk of developing coronary heart disease (CHD).
Matti Narkia

Vitamin D may be critical to reduce multiple sclerosis risk - 0 views

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    Supplements of vitamin D at 'critical time periods' may be key to reducing the risk of multiple sclerosis, according to a new study from the UK and Canada. Researchers report that vitamin D may interact with a specific genetic component called HLA-DRB1*1501 that is known to increase the risk of multiple sclerosis by three-fold
Matti Narkia

Pomegranate extract could slow cartilage loss in arthritis - 0 views

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    Pomegranate fruit extracts have been shown to block enzymes that contribute to cartilage degradation in osteoarthritis, a condition that currently has little perspective for treatment. The findings, although still at a preliminary stage not yet proven in humans, are likely to encourage further consumption of pomegranate juice in the UK, where sales have rocketed in the last year thanks to media coverage of its antioxidant content.
Matti Narkia

Pomegranate juice's heart benefits backed by study - 0 views

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    Pomegranate juice is remarkably rich in antioxidants, such as soluble polyphenols, tannins, and anthocyanins, which scavenge free radicals and help prevent DNA damage that can lead to a number of serious health conditions. It is also believed to have antiatherosclerotic properties, as studies in Israel have shown that the fruit juice, taken daily, prevented the thickening of arteries and slowed down cholesterol oxidation by almost half (Clin Nutr. 2004 Jun;23(3):423-33).
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