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Sunday, 23 February 2014

Nutrients That Fight Alzheimer’s

 | Feb 18, 2014
Nutrients That Fight Alzheimer’s
As you get older, your chances of Alzheimer’s disease increase. But researchers in Germany believe that two nutrients, taken in supplements or eaten in your meals, may reduce your risk of developing this brain-destroying condition.
When scientists analyzed the brain health and nutrient levels in people aged 65 to 90, they found that people with higher blood levels of vitamin C and beta carotene (the pigment found in sweet potatoes and carrots) were at lower risk for dementia.
“Longitudinal studies with more participants are necessary to confirm the result that vitamin C and beta-carotene might prevent the onset and development of Alzheimer’s disease,” says researcher Gabriele Nagel.
Aside from taking supplements, the researchers advise eating more citrus fruits, spinach and apricots as well as other fruits and vegetables rich in vitamin C and beta carotene.

Saturday, 22 February 2014

The Best "New" Superfoods

January 1, 2014



These fermented foods are great sources of healthful probiotics.

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Ask an American to name a good food source of healthful probiotics, and yogurt, that mainstay of the dairy aisle, is likely to top the list. Lesser-known sources of probiotics include pickles, red wine, dark chocolate and some cheeses.
But in many countries, from Japan to India to Poland, people enjoy a much wider variety of delicious probiotic-packed foods—and you can enjoy them here in the US, too.
Until recently, probiotics were known mostly for their ability to help with digestion—which they are very good at doing.
Now: Researchers are discovering that probiotics also can boost the immune system, reduce allergy symptoms and even improve one's mood. Several probiotic superfoods also rid the body of yeast overgrowth—a powerful one-two punch when it comes to good health.
Here are the best probiotic foods you're probably not eating…*


KIMCHI

A staple in the Korean diet, this fermented side dish consists of vegetables and an assortment of seasonings. A traditional kimchi dish includes Chinese cabbage, red chili pepper flakes, ginger, garlic and green onions. Other vegetables used to make kimchi include white or red radishes, leeks and carrots.
Upon opening a jar of kimchi, you'll see bubbles rise to the surface, a sure sign that this superfood contains lots of good bacteria such as Lactobacillus, Leuconostoc andWeisella. Kimchi is also a good source of vitamins B-1, B-2 and C, niacin, fiber and beta-carotene.
How to use it: Try kimchi on top of a burger…mix it with fried rice…or add it to eggs to give your breakfast an extra kick. Just one-half cup a day will go a long way toward soothing your intestines.
Where to find it: Look for kimchi in the refrigerated section of Asian food stores, in the dairy section of natural-food stores, such as Whole Foods Markets and Trader Joe's, or at Rejuvenative.com, which offers different varieties of kimchi.


DARK MISO

Miso, a paste made from soybeans, salt, grains and a fungus called koji, has been enjoyed in China and Japan for more than 2,500 years. In the US, it's commonly served as the main ingredient in miso soup. The darker the hue of miso, the longer the fermentation process, which means that it's chock-full of good bacteria. Dark varieties, such as barley miso or brown rice miso, taste earthier and saltier than the lighter ones commonly used in miso soup.
Dark miso is a good source of protein, vitamins A and K, minerals like calcium and potassium and Lactobacillus probiotic cultures.
How to use it: You can thin out dark miso with cooking water and then use this as a sauté sauce for vegetables or add dark miso to stews and soups. Use sparingly, as it's powerful stuff and contains a lot of sodium.
Where to find it: Miso is typically sold as a thick paste in small, plastic containers or glass jars. It's carried in major natural-food stores, typically in the dairy section—but these days, you can find it in many supermarkets, too. Good brands include South River Miso Company (SouthRiverMiso.com) and the American Miso Company (Great-Eastern-Sun.com).


COCONUT WATER KEFIR

Kefir is a silky-smooth, probiotic-rich drink popular in northern and eastern Europe. It's made by adding kefir grains to cow, goat or sheep milk. An excellent nondairy version is derived from coconut water—the juice of the young, or green, coconut. Coconut water kefir is packed with several kinds of Lactococcus cultures, along with magnesium, potassium, calcium and B vitamins.
How to use it: Use kefir instead of milk in smoothies and dressings or enjoy it right out of the bottle (it has a mild, sweet taste and will not add the strong taste of coconut).
Where to find it: Kefir is available in most supermarkets and, of course, at most natural-food stores. Coconut water kefir is available at natural-food stores and MyTonix.com.


SAUERKRAUT

You probably know that a mound of sauerkraut on a hot dog gives you a nice helping of probiotics. In fact, cabbage, the key ingredient in sauerkraut, is one of the best probiotic--producing foods, as it stands up well to days of fermentation.
Classic sauerkraut is made from three ingredients—cabbage, salt and vinegar. But it contains lots of good stuff, including vitamin C, vitamin K, potassium, fiber, folate, iron and the Leuconostoc, Pediococcus and Lactobacillus strains of probiotics.
How to use it: You may not have much experience using sauerkraut creatively. But in fact, it goes great with lots of meats besides hot dogs, including corned beef and pot roast, and in stews and soups, such as potato leek soup.
For a tangy guacamole dip: Chop sauerkraut and mix with avocados, garlic and a dash of lemon juice.
Where to find it: Buy sauerkraut labeled "raw" and "unpasteurized." Good choices: Deep Root Organic, available at Whole Foods, and Ultimate Kraut at Rejuvenative.com.


GET YOUR PROBIOTIC KICK

When cooking with probiotic foods, add them at the very end of the heating process—for example, just a minute before you serve stew—to preserve the live cultures. Also, be sure to choose brands that are unpasteurized for the same reason.
And remember: Kimchi and sauerkraut are easy and economical to prepare at home. For recipes, go to AllRecipes.com or EdenFoods.com.


THE VINEGAR TRICK

So, if a probiotic is a healthful type of bacteria that stays viable in the gut after eating, what is a prebiotic? A prebiotic acts as food for a probiotic. In other words, it's the fuel in your body that probiotics need to thrive.
An excellent example of a prebiotic is raw, organic, unrefined apple cider vinegar, which contains strandlike chains of protein enzyme molecules rich in nutrients. Apple cider vinegar—be sure it's the unrefined kind!—is nirvana for probiotics. Sprinkle it on vegetables or use in salad dressings to help your good bacteria help you!
*Fermented foods should be refrigerated to preserve probiotic properties.

http://www.bottomlinepublications.com/content/article/diet-a-exercise/the-best-new-superfoods

The Best Dietary Supplements

 | Feb 10, 2014


The Best Dietary Supplements
It used to be that vitamins were scoffed at by regular mainstream physicians. But in 2002, a report in JAMA(the Journal of the American Medical Association) began to signal conventional support of their use.
Nevertheless, today, much confusion on the topic remains.
In my next few articles, I aim to uncover the controversy and facts about:

  • The value of nutrient supplementation.
  • The reasons why some vitamins have not been shown to reduce certain diseases.
  • The value of nutrient supplements from whole food sources.
  • Ways to decide which supplements are for you.
  • The supplements just about everyone should be taking.
  • The supplements good for specific illnesses.
  • An unacceptably high 46 percent of subjects in both groups discontinued the study after beginning it.
  • The researchers concluded that that multivitamins don’t protect against cardiovascular risk at all even though the group taking multivitamins had an 11 percent reduction in time to death by any cause compared with the control group. Even before the study began, they had set their efficacy standard to be a 25 percent reduction in cardiovascular risk and anything less than this was to be considered “no benefit.”
  • There were more subjects in the multivitamin group with diabetes (a well-known risk for heart disease) at baseline compared to the placebo group.
  • The multivitamins used in this study contained a mere 100 IU of vitamin D (effective doses are 3,000 to 5,000 IU daily) and a mere 100 mcg of vitamin B12 (effective doses are 600 to 1,000 mcg in order to lowers levels of homocysteine, a known cardiovascular risk). For vitamin E, they used alpha tocopherol but did not use gamma tocopherol. (Clinical trials of alpha tocopherol alone have failed to show cardio-protective effects, whereas gamma tocopherol has consistently been associated with significantly lower cardiovascular disease [6].
  • Adherence criteria were very low. If subjects took their multivitamin regimen just two-thirds of the time, it was considered adequate.
  • The data relied on recollection by study participants as to how consistently they took their pills (inherently weak) in a questionnaire answered once a year. (another very inaccurate method), rather than counting returned unused pills (quality method).
  • The daily vitamins used in this study were too low: only 60 mg of vitamin C (effective dose is 500 to 3,000 mg), 25 mcg of vitamin B12 (effective dose is 600 to 1,000 mcg), and 20 mcg of selenium (effective dose is 200 mcg). The authors even admitted: “[The] doses of vitamins may be too low…”
  • Benefits were seen in the multivitamin group compared to placebo after 2.5 years, but this was not considered in their final conclusions.


Why Controversy About Supplements Persists
It used to be that doctors mocked vitamin supplements and told patients they only led to expensive urine. Having been a mainstream medical doctor for many years, I understand where this thinking originated.
First, as students in medical school, we received only about one 60-minute lecture concerning nutrition in four years of medical education. In residency training we got even less. None of our physician-educators knew anything about the role of nutrition in health, and they had no grasp of the value of nutrient supplementation for the prevention or reversal of chronic illness. Furthermore, private-practice doctors receive expensive catered lunches from pharmaceutical salespeople to teach them about pharmaceutical drugs but are never wined and dined by people knowledgeable about nutrient supplements.
It wasn’t until July 2002 that the American Medical Association (AMA) finally endorsed the limited use of supplements (multivitamins with minerals) [1]. That report looked at vitamins A, B, C, D and E and concluded: “Inadequate intake of several vitamins has been linked to chronic diseases, including coronary heart disease, cancer, and osteoporosis.”
Important Topic
Yet the topic of vitamins and nutrient supplements is a really important one. It seems to be a dividing line between conventional medical thinking and natural or “alternative” health, but it shouldn’t be that way. The scientific literature helps us understand which type of nutrients work and which ones don’t.
We know there have been some large studies of supplements beginning in 1994. Some demonstrated benefits, while other found no benefits for taking certain single vitamins, such as vitamin A, beta-carotene and vitamin E.
At the same time, there have been an even larger number of studies showing overwhelming proven effectiveness for a whole lot of other nutrient supplements. Therefore, rather than attack all natural supplements, wouldn’t it be wiser and more valuable for us all to take an honest look at the nutrients and their studies so we know which ones work, which ones don’t and why?
Unfortunately, I often read one-sided opinion articles designed to sway readers away from nutrient supplements altogether (see below). There are even flawed studies that get published although they are seriously misleading. Because doctors are generally too busy to look at all the data researchers accumulate, they typically believe the study results that make headlines. Consequently, anyone who wants to know the truth about supplements can’t rely on a doctor but personally has to sift through the conflicting points of view.
It reminds me of how the tobacco industry fooled the public for many years even after it was reported in 1950 by theBritish Medical Journal [2] that smoking was strongly linked to lung cancer. Even after the 1964 U.S. Surgeon General’s “Report on Smoking and Health” proved the dangers of smoking, the tobacco companies wouldn’t admit the health risks.
It wasn’t until 1998 when the Tobacco Master Settlement Agreement [3] — a $207 billion cost to the tobacco industry — headlined the news that we all finally became clear that tobacco caused cancer. There have been an estimated 8 million Americans (157 million American life-years) saved from tobacco deaths over the past 50 years because of the tobacco laws that we implemented [4].
Flawed Studies
Through the years that I’ve searched the scientific literature on various topics, I have often found studies with results that support — and those that refute — the use of a certain natural interventions. Below are a few recent scientific reports that have fueled the confusion about the value of certain supplements. But by carefully looking at their study design and methodologies, we can learn more that is behind the headlines and authors’ conclusions.
The first article [5] was published in a 2013 Annals of Internal Medicine and concluded that “high-dose” multivitamins and minerals offer no benefit after heart attack. Subjects who had a previous heart attack were given either a multivitamin supplement or placebo and then followed for an average of 4.5 years for any heart event. Flaws of the study design include:
Another recent study [7] also published in the Annals of Internal Medicine looked at the effects of low-potency multivitamin supplementation on cognition in aging males. The authors concluded that long-term multivitamin use had no value to improve cognition or memory in 5,947 male physicians with a mean age of 65 years who were followed for 13 years.
Consider that in 2007 the same journal published a study [8] of 4,052 male physician subjects followed for 18 years in which researchers found a significant cognition and verbal memory improvement in men taking beta carotene compared to placebo. Therefore, it’s interesting to consider design flaws that likely discredit their conclusion in this 2013 study:
Opinion Articles
Opinion articles about supplements are so often so one-sided that they are actually dishonest. An opinion article written by a rather well-known anti-supplement doctor, published in the June 8, 2013 issue of The New York Times Sunday Review [9] is entitled “Don’t Take Your Vitamins.”
This doctor points to what I call the “big five” published studies that failed to find benefits for supplements. One study demonstrated that when male smokers took supplements containing vitamins A, C, E, beta carotene and selenium, the nutrients didn’t improve their health, didn’t reduce the number of lung cancer deaths and might even have harmed their health [10] [11]. Another study found no benefits for those nutrients in improving gastrointestinal cancer rates [12]. An experiment with vitamin E and beta carotene did not find an improvement for overall mortality rates [13], and research on vitamin E did not show it to be worthwhile in postponing heart failure and prostate cancer deaths [14].
From these five studies, this doctor incorrectly concludes that all supplements are, therefore, a waste of time. In his summary statement he warns: “[C]onsumers don’t know that taking megavitamins could increase their risk of cancer and heart disease and shorten their lives…”
In a succeeding article [15] in the same newspaper, that doctor points to the nearly 50,000 annual adverse effects (and does not mention any deaths) reported by supplement users. At the same time, however, he neglects to mention the known 2.2 million annual adverse reactions reported in hospitalized patients [16] and the 106,000 deaths [17] directly attributed to prescription drugs each year in the U.S. He warns us all to “simply stay clear” of nutrient supplements.
In my next article I’ll provide an honest discussion of the nutrient supplements proven to be efficacious for disease prevention and treatment.
Keep feeling good,
Michael Cutler, M.D.
Easy Health Options
[1] Fairfield KM, Fletcher RH. Vitamins for chronic disease prevention in adults: scientific review. JAMA. 2002 Jun 19;287(23):3116-26.
[2] Doll, R.; Hill, A. B. (1 September 1950). Smoking and Carcinoma of the Lung. British Medical Journal 2 (4682): 739–748.
[3] http://publichealthlawcenter.org/topics/tobacco-control/tobacco-control-litigation/master-settlement-agreement
[4] Schroeder SA, Koh HK. Tobacco control 50 years after the 1964 surgeon general’s report. JAMA. 2014 Jan 8;311(2):141-3.
[5] Lamas GA, Boineau R, Goertz C, et al. Oral High-Dose Multivitamins and Minerals After Myocardial Infarction.Annals of Internal Medicine. 2013;159(12).
[6] Ohrvall M, Sundlof G, Vessby B. Gamma, but not alpha, tocopherol levels in serum are reduced in coronary heart disease patients. J Intern Med. Feb 1996;239(2):111-117.
[7] Grodstein F, O’Brien J, Kang JH, et al. Long-Term Multivitamin Supplementation and Cognitive Function in Men: The Physicians’ Health Study II. Annals of Internal Medicine. 2013;159(12).
[8] Grodstein F, Kang JH, Glynn RJ, Cook NR, Gaziano JM. A randomized trial of beta carotene supplementation and cognitive function in men: the Physicians’ Health Study II. Arch Intern Med. 2007 Nov 12;167(20):2184-90.
[9] http://www.nytimes.com/2013/06/09/opinion/sunday/dont-take-your-vitamins.html?_r=0
[10] [No authors listed]. The effect of vitamin E and beta carotene on the incidence of lung cancer and other cancers in male smokers. The Alpha-Tocopherol, Beta Carotene Cancer Prevention Study Group. N Engl J Med. 1994 Apr 14;330(15):1029-35.
[11] Omenn GS, Goodman GE, Thornquist MD, et al. Effects of a combination of beta carotene and vitamin A on lung cancer and cardiovascular disease. N Engl J Med. 1996 May 2;334(18):1150-5.
[12] Bjelakovic G, Nikolova D, Simonetti RG, Gluud C. Antioxidant supplements for prevention of gastrointestinal cancers: a systematic review and meta-analysis. Lancet. 2004 Oct 2-8;364(9441):1219-28.
[13] Bjelakovic G, Nikolova D, Gluud LL, Simonetti RG, Gluud C. Antioxidant supplements for prevention of mortality in healthy participants and patients with various diseases. Cochrane Database Syst Rev. 2012 Mar 14;3:CD007176.
[14] Miller ER 3rd, Pastor-Barriuso R, Dalal D, Riemersma RA, Appel LJ, Guallar E. Meta-analysis: high-dosage vitamin E supplementation may increase all-cause mortality. Ann Intern Med. 2005 Jan 4;142(1):37-46.
[15] http://www.nytimes.com/2013/12/15/opinion/sunday/skip-the-supplements.html
[16] http://www.webdc.com/pdfs/deathbymedicine.pdf
[17] Lazarou J, Pomeranz BH, Corey PN. Incidence of adverse drug reactions in hospitalized patients: a meta-analysis of prospective studies. JAMA. 1998 Apr 15;279(15):1200-5