Qa fitness: nutrition

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Dark Chocolate</h3>
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<span class="s1"><img src="http://www.freefitness.uk.com/editorimages/images/articles231.jpg" style="background-color: transparent;" />Dark chocolate is loaded with nutrients that can positively affect your health.</span></div>
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<span class="s1">Made from the seed of the cocoa tree, it is one of the best sources of antioxidants on the planet.</span></div>
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<span class="s1">Studies show that <b>dark</b> chocolate (not the sugary crap) can improve health and lower the risk of heart disease.</span></div>
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1. Dark Chocolate is Very Nutritious</h2>
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If you buy quality dark chocolate with a high cocoa content, then it is actually quite nutritious.</div>
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<span class="s1">It contains a decent amount of soluble fiber and is loaded with minerals.</span></div>
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<span class="s1">A 100 gram bar of dark chocolate with 70-85% cocoa contains:</span></div>
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<li class="li2" style="color: #666666;"><span class="s1">11 grams of fiber.</span></li>
<li class="li2" style="color: #666666;"><span class="s1">67% of the RDA for Iron.</span></li>
<li class="li2" style="color: #666666;"><span class="s1">58% of the RDA for Magnesium.</span></li>
<li class="li2" style="color: #666666;"><span class="s1">89% of the RDA for Copper.</span></li>
<li class="li2" style="color: #666666;"><span class="s1">98% of the RDA for Manganese.</span></li>
<li class="li2" style="color: #666666;"><span class="s1">It also has plenty of potassium, phosphorus, zinc and selenium.</span></li>
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<span class="s1">Of course, 100 grams (3.5 ounces) is a fairly large amount and not something you should be consuming daily. All these nutrients also come with 600 calories and moderate amounts of sugar. </span></div>
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<span class="s1">For this reason, dark chocolate is best consumed in moderation.</span></div>
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<span class="s1">The fatty acid profile of cocoa and dark chocolate is excellent. The fats are mostly saturated and monounsaturated, with small amounts of polyunsaturates.</span></div>
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<span class="s1">It also contains stimulants like caffeine and theobromine, but is unlikely to keep you awake at night as the amount of caffeine is very small compared to coffee. </span></div>
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<span style="color: #6699ff;"><b>Bottom Line:</b> Quality dark chocolate is rich in Fiber, Iron, Magnesium, Copper, Manganese and a few other minerals.</span></div>
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2.Dark Chocolate is a Powerful Source of Antioxidants</h2>
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Have you ever heard of a measure called ORAC? </div>
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<span class="s1">ORAC stands for Oxygen Radical Absorbance Capacity. It is a measure of the antioxidant activity of foods.</span></div>
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<span class="s1">Basically, researchers pit a bunch of free radicals (bad) against a sample of food and see how well the antioxidants in the food can “disarm” them.</span></div>
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<span class="s1">The biological relevance of this metric is questioned, because it’s done in a test tube and may not have the same effect in the body.</span></div>
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<span class="s1">However, I think it is worth mentioning that raw, unprocessed cocoa beans are among the highest scoring foods that have been tested.</span></div>
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<span class="s1">Dark chocolate is loaded with organic compounds that are biologically active and function as antioxidants. These include polyphenols, flavanols, catechins, among others.</span></div>
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<span class="s1">One study showed that cocoa and dark chocolate contained more antioxidant activity, polyphenols and flavanols than other fruits they tested, which included blueberries and Acai berries.</span></div>
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<b style="color: #6699ff;">Bottom Line:</b><span style="color: #6699ff;"> Cocoa and dark chocolate have a wide variety of powerful antioxidants, way more than most other foods.</span></div>
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3. Dark Chocolate May Improve Blood Flow and Lower Blood Pressure</h2>
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<span class="s1">The flavanols in dark chocolate can stimulate the endothelium, the lining of arteries, to produce Nitric Oxide (NO), which is a gas.</span></div>
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<span class="s1">One of the functions of NO is to send signals to the arteries to relax, which lowers resistance to blood flow and therefore reduces blood pressure.</span></div>
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<span class="s1">There are many controlled trials showing that cocoa and dark chocolate can improve blood flow and lower blood pressure, but the effects are usually mild. However, there is also one study in people with elevated blood pressure that showed no effect, so take all this with a grain of salt.</span></div>
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<b style="color: #6699ff;">Bottom Line:</b><span style="color: #6699ff;"> The bioactive compounds in cocoa can improve blood flow in the arteries and cause a small but statistically significant decrease in blood pressure.</span></div>
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4. Dark Chocolate Raises HDL and Protects LDL Against Oxidation</h2>
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<span class="s1">Consuming dark chocolate can improve several important risk factors for heart disease.</span></div>
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<span class="s1">In a controlled trial, cocoa powder was found to significantly decrease oxidized LDL cholesterol in men.</span></div>
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<span class="s1">It also increased HDL and lowered total LDL in men with elevated cholesterol.</span></div>
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<span class="s1">Oxidized LDL means that the LDL (“bad” cholesterol) has reacted with free radicals.</span></div>
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<span class="s1">This makes the LDL particle itself reactive and capable of damaging other tissues… such as the lining of the arteries in your heart.</span></div>
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<span class="s1">It makes perfect sense that cocoa lowers oxidized LDL. It contains an abundance of powerful antioxidants that do make it into the bloodstream and protect lipoproteins against oxidative damage.</span></div>
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<span class="s1">Dark chocolate can also reduce insulin resistance, which is another common risk factor for many diseases like heart disease and diabetes.</span></div>
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<span style="color: #6699ff;"><b>Bottom Line:</b> Dark chocolate improves several important risk factors for disease. It lowers the susceptibility of LDL to oxidative damage while increasing HDL and improving insulin sensitivity.</span></div>
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5. Dark Chocolate May Lower The Risk of Cardiovascular Disease</h2>
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<span class="s1">The compounds in dark chocolate appear to be highly protective against the oxidation of LDL.</span></div>
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<span class="s1">In the long term, this should cause much less cholesterol to lodge in the arteries and we should see a lower risk of heart disease over the long term.</span></div>
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<span class="s1">It turns out that we have several long-term observational studies that show a fairly drastic improvement.</span></div>
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<span class="s1">In a study of 470 elderly men, cocoa was found to reduce the risk of cardiovascular death by a whopping 50% over a 15 year period.</span></div>
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<span class="s1">Another study revealed that eating chocolate 2 or more times per week lowered the risk of having calcified plaque in the arteries by 32%. Eating chocolate less frequently had no effect.</span></div>
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<span class="s1">Yet another study showed that chocolate 5+ times per week lowered the risk of cardiovascular disease by 57%.</span></div>
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<span class="s1">Of course, these 3 studies are so-called observational studies that can not prove that it was the chocolate that caused the reduction in risk.</span></div>
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<span class="s1">However, given that we have a biological mechanism (lower blood pressure and oxidized LDL) then I find it plausible that regular consumption of dark chocolate can in fact reduce the risk of heart disease.</span></div>
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<span style="color: #6699ff;"><b>Bottom Line:</b> Observational studies show a drastic reduction in heart disease risk for the people who consume the most chocolate.</span></div>
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6. Dark Chocolate May Protect Your Skin Against The Sun</h2>
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<span class="s1">The bioactive compounds in dark chocolate may also be great for your skin.</span></div>
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<span class="s1">The flavonols can protect against sun-induced damage, improve blood flow to the skin and increase skin density and hydration.</span></div>
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<span class="s1">The minimal erythemal dose (MED) is the minimum amount of UVB rays required to cause redness in the skin, 24 hours after exposure.</span></div>
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<span class="s1">In one study of 30 people, the MED more than doubled after consuming dark chocolate high in flavanols for 12 weeks.</span></div>
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<span class="s1">If you’re planning on a beach vacation, consider loading up on dark chocolate in the prior weeks and months.</span></div>
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<span style="color: #6699ff;"><b>Bottom Line:</b> Studies show that the flavanols from cocoa can improve blood flow to the skin and protect it against sun-induced damage.</span></div>
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7. Dark Chocolate May Improve Brain Function</h2>
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<span class="s1">The good news isn’t over yet. Dark chocolate may also improve the function of the brain.</span></div>
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<span class="s1">One study of healthy volunteers showed that 5 days of consuming high-flavanol cocoa improved blood flow to the brain.</span></div>
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<span class="s1">Cocoa may also significantly improve cognitive function in elderly people with mental impairment. It also improves verbal fluency and several risk factors for disease.</span></div>
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<span class="s1">Cocoa also contains stimulant substances like caffeine and theobromine, which may be a key reason cocoa can improve brain function in the short term.</span></div>
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<b style="color: #6699ff;">Bottom Line:</b><span style="color: #6699ff;"> Studies show that cocoa can improve blood flow to the brain.</span></div>
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<span class="s1">There is considerable evidence that cocoa can provide powerful health benefits, being especially protective against cardiovascular disease.</span></div>
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<span class="s1">But of course, this doesn’t mean people should go all out and consume lots of chocolate every day. It is still loaded with calories and easy to overeat on. Maybe have a square or two after dinner and try to really savor them.</span></div>
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<span class="s1">Be aware that a lot of the chocolate on the market is crap. You need to choose quality stuff… organic, dark chocolate with 70% or higher cocoa content.</span></div>
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<span class="s1">Dark chocolates often contain some sugar, but the amounts are usually small and the darker the chocolate, the less sugar it will contain.</span></div>
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<span class="s1">There are of course other benefits to chocolate that I have not mentioned… such as the awesome taste.</span></div>

the health benefits of dark choclate

Dark Chocolate Dark chocolate is loaded with nutrients that can positively affect your health. Made from the seed of the cocoa tree, it...

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the health benefits of dark choclate

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