Showing posts with label pressure. Show all posts
Showing posts with label pressure. Show all posts
Egg white protein may help high blood pressure
Thursday, March 20, 2014
Scientists reported new evidence today that a component of egg whites — already popular as a substitute for whole eggs among health-conscious consumers concerned about cholesterol in the yolk — may have another beneficial effect in reducing blood pressure. Their study was part of the 245th National Meeting & Exposition of the American Chemical Society (ACS), the worlds largest scientific society, which continues here through Thursday.
"Our research suggests that there may be another reason to call it the incredible, edible egg," said study leader Zhipeng Yu, Ph.D., of Jilin University. "We have evidence from the laboratory that a substance in egg white — its a peptide, one of the building blocks of proteins — reduces blood pressure about as much as a low dose of Captopril, a high-blood-pressure drug."
Yu and colleagues, who are with Clemson University, used a peptide called RVPSL. Scientists previously discovered that the substance, like the family of medications that includes Captopril, Vasotec and Monopril, was an angiotensin-converting-enzyme (ACE) inhibitor. It has a powerful ability to inhibit or block the action of ACE, a substance produced in the body that raises blood pressure.
They set out to further document RVPSLs effects, using laboratory rats that develop high blood pressure and are stand-ins for humans in such early research on hypertension. The results of feeding the substance were positive, showing that RVPSL did not have apparent toxic effects and lowered blood pressure by amounts comparable to low doses of Captopril.
"Our results support and enhance previous findings on this topic," Yu said. "They were promising enough to move ahead with further research on the effects of the egg white peptide on human health."
Yu noted that the research was done with a version of the peptide that was heated to almost 200 degrees Fahrenheit during preparation — less than the temperatures typically used to cook eggs. He cited evidence from other research, however, that egg whites may retain their beneficial effects on blood pressure after cooking.
One, for instance, published in the ACS Journal of Agricultural and Food Chemistry, showed that fried egg protein, cooked at high temperatures, actually showed greater ability to reduce blood pressure than eggs boiled at 212 degrees F.
Yu believes that egg white peptides, either in eggs or as a supplement, could become useful as an adjunct to high-blood-pressure medication. For now, he said people with high blood pressure should consult their health care provider before making any changes.
And he noted that findings about egg white and high blood pressure add to the emerging nutritional image of eggs. Once regarded as a food to avoid in a healthy diet, studies in recent years have concluded that many people can eat eggs without raising their blood cholesterol levels, benefiting from an inexpensive food low in calories and rich in protein, vitamins and other nutrients.
Blueberries Lower Blood Pressure and Risk of Heart Disease
Saturday, March 15, 2014
(Article first published as A Handful of Berries Each Day Lowers Blood Pressure and Risk of Heart Disease on Technorati.)
Bioactive compounds found in the full spectrum of berries, and especially blueberries are shown to lower blood pressure and prevent hypertension, according to a study published in the American Journal of Clinical Nutrition. The results provide fresh proof that this great tasting source of beneficial phytonutrients can lower the risk associated with a heart attack.
The team of scientists followed nearly 200,000 men and women over a period of 14 years and assessed their intake of flavonoids from a variety of natural foods including apples, orange juice, blueberries, red wine, and strawberries. They found that the group consuming the highest amount of anthocyanins (found mainly in blueberries and strawberries in the US) were 8% less likely to develop hypertension over the period of the study.
Nutrition researchers will now begin to identify the different sources of anthocyanins as well as the ideal dose necessary to prevent hypertension. Most berry varieties are packed with flavonoids and anthocyanins that have been shown to lower the risk of chronic illness from heart disease, stroke, diabetes and premature brain aging.
readmore
“Our findings are exciting and suggest that an achievable dietary intake of anthocyanins may contribute to the prevention of hypertension,” said lead author Professor Aedin Cassidy of the Department of Nutrition at the University of East Anglias Medical School. Approximately one-quarter of all adults worldwide and as many as one in three Americans suffer from hypertension, a leading cause of heart disease and death from a heart attack.
Anthocyanins in Berries Reduce Risk of Hypertension
A more in-depth analysis showed that consumption of blueberries in particular conveyed the highest degree of protection against developing high blood pressure with a 10% lower incidence for those eating the fruit once a week. Dr. Cassidy noted "Our findings are exciting and suggest that an achievable dietary intake of anthocyanins may contribute to the prevention of hypertension". Hypertension is a leading risk factor for heart attack, and this finding could translate to a significant reduction in the number of people suffering a cardiovascular event.
A Daily Dose of Berries Can Prevent Heart Disease, Stroke and Dementia
Extensive scientific studies now exist showing how berry consumption, and especially blueberries help to prevent diseases of the brain that result in cognitive decline and dementia. The special compounds that give berries their deep purple and reddish colors are able to cross into the brain where they exert a powerful effect to thwart functional decline.
We now have evidence that berry consumption can prevent hypertension and lower heart attack risk. Until exact standards are developed, nutrition experts advise eating one-half to a full cup of berries several times a week to protect the heart and the brain.
Chocolate Effectively Lowers Risk from High Blood Pressure
Tuesday, January 28, 2014
(Article first published as Chocolate Protects Against High Blood Pressure and Heart Disase on Technorati.)
High blood pressure is a significant concern as it significantly raises the incidence of vascular disease and stroke. As a result of stress, poor diet and lifestyle, enzymes in our body produce a substance known as angiotensin II that causes blood vessels to narrow and blood pressure to increase.
High blood pressure is a significant concern as it significantly raises the incidence of vascular disease and stroke. As a result of stress, poor diet and lifestyle, enzymes in our body produce a substance known as angiotensin II that causes blood vessels to narrow and blood pressure to increase.
Standard medical practice is to prescribe ACE inhibitors to inhibit the action of these enzymes, often with mixed results and always dangerous side effects. Researchers have now confirmed that natural flavanols found in cacao from chocolate can lower blood pressure as effectively as the Big Pharma solutions.
Natural Flavanols from Cacao Effectively Regulate Blood Pressure
Study Demonstrates Blood Pressure Lowering Effect of Chocolate
The study involved ten men and six women aged 20 to 45 who were fed 75 grams of unsweetened chocolate with a cacao content of 72%. Blood samples were taken before and again after eating the sample chocolate to analyze the activity of the ACE enzyme. Researchers were amazed to find that the enzyme activity was reduced by 18%, effectively lowering dangerous blood pressure as well or even better than many pharmaceuticals.
The lead author concluded, “Our findings indicate that changes in lifestyle with the help of foods that contain large concentrations of catechins and procyaninides prevent cardiovascular diseases.” It`s important to note that the results were produced using unsweetened cacao as found in many specialty dark chocolates. The same benefits would not be conferred with commonly available sweetened milk chocolate and semi-sweet varieties.
Flavanols From Chocolate Increases Nitric Oxide, Relaxes Blood Vessels
Cacao from chocolate is shown to be yet another example of how a natural compound can promote health and prevent disease. Flavanols and catechins are chemical compounds found in unprocessed foods that are essential to human health. When consumed or supplemented as part of a whole food diet they demonstrate reduced risk of disease without the damaging side effects commonly seen with pharmaceuticals.
Guest Post Pressure Cooker Black Bean Soup Recipe
Sunday, January 12, 2014
Joy Manning is senior recipes editor at TastingTable.com. She blogs at OysterEvangelist.com. She enjoys all things cheap, healthy and good from her home/office/test kitchen in South Philadelphia.
I may be five-years-married and in my early-middle 30s, but I am having a crazy hot love affair: 252 degrees Fahrenheit, to be exact. That’s the temperature at which water boils—way hotter than the usual 212—inside my pressure cooker.
Some pressure cooker enthusiasts are keen on the fact that things cook in about one-third of the usual time under pressure. True, but for me the allure lies in its ability to produce slow-cooked flavor in a hurry. The pressure cooker happens to work magic on some of the inexpensive ingredients we all know can be made to taste amazing over the course of an hours-long braise—dried beans, beets, cheaper cuts of meat like brisket and pork shoulder—in almost no time flat. And contemporary models are so tricked out with safety features, there is absolutely nothing to fear.
This recipe for black bean and chipotle soup hits the table in 45 minutes. And 30 of those minutes are completely inactive: While you wait for dinner, have a glass of wine and watch the Daily Show on DVR. It is the absolute best black bean soup I have ever made, not just because it uses 90 percent pantry staples or the fact that it’s vegan, but because the slow cooker manages to intensify and meld flavors better and faster than seems imaginable until you use one.
As kitchen gadgets go, pressure cookers are pretty inexpensive and they’re so great at dinner on the fly you’re bound to save a bundle on take out. Get yourself one, and start with this soup that I promise will become a staple:
~~~
If you like this recipe, you might also enjoy:
- Black Bean Burrito Bake
- Black Bean Salad with Fresh Corn
- Curried Chickpeas and Black Beans
Black Bean and Chipotle Soup
Serves 4 to 6
1 tablespoon canola oil
1 medium onion, diced (about 1 cup)
2 medium celery stalks, diced (about ½ cup)
1 small carrot, diced (about ¼ cup)
1 tablespoon cumin
1 teaspoon salt
3 garlic cloves, minced
1½ cup dried black beans
8 cups cold water
1/2 to 1 cup raw cashews
1 cup boiling water
1 to 2 chipotle in adobo sauce(depending on your heat tolerance), plus 1 to 2 tablespoons adobo sauce
1 tablespoon tomato paste
Juice of ½ lime
¼ cup chopped cilantro
1) In a pressure cooker, combine the oil, onion, celery, carrot, cumin and salt and cook, stirring frequently, over medium-high heat until the vegetables soften, about 5 to 8 minutes. Add the garlic, and cook until fragrant, about 30 seconds.
2) Add the black beans and cold water and lock the lid shut. Bring to high pressure over high heat, and then, once high pressure is achieved, reduce your heat to medium, as low as you can while still maintaining a steady hiss from the pressure-release valve. Cook under pressure for 30 minutes. Use the quick-release button or allow the pressure to come down naturally.
3) Meanwhile, cover the cashews with the boiling water and allow to stand while the bean soup cooks. In a blender, combine the cashews in their soaking water, the chipotles and adobo sauce, the tomato paste and 1 ladle full of cooked beans from the pressure cooker. Blend on high until a smooth puree has formed, about 1 minute. Whisk this puree back into the soup.
4) Stir in the lime and cilantro and season with additional salt if necessary. Serve immediately, or freeze for up to three months.
Approximate Calories, Fat, Fiber, Protein, and Price Per Serving
Four servings: 438 calories, 14.2 g fat, 19 g fiber, 21.9 g protein, $1.13
Six servings: 292 calories, 9.4 g fat, 12.8 g fiber, 14.6 g protein, $0.80
Calculations
1 tablespoon canola oil: 124 calories, 14 g fat, 0 g fiber, 0 g protein, $0.08
1 medium onion, diced (about 1 cup): 46 calories, 0.1 g fat, 1.5 g fiber, 1 g protein, $0.25
2 medium celery stalks, diced (about ½ cup): 11 calories, 0.2 g fat, 1.3 g fiber, 0.6 g protein, $0.36
1 small carrot, diced (about ¼ cup): 25 calories, 0.1 g fat, 1.7 g fiber, 0.6 g protein, $0.10
1 tablespoon cumin: negligible calories, fat, fiber, and protein, $0.05
1 teaspoon salt: negligible calories, fat, fiber, and protein, $0.01
3 garlic cloves, minced: 13 calories, 0 g fat, 0.2 g fiber, 0.6 g protein, $0.18
1½ cup dried black beans: 1022 calories, 3.9 g fat, 67.3 g fiber, 68.6 g protein, $0.75
8 cups cold water: negligible calories, fat, fiber, and protein, FREE
1/2 to 1 cup raw cashews (calculations are for 3/4 cup): 470 calories, 37.3 g fat, 2.8 g fiber, 15.5 g protein, $1.95
1 cup boiling water: negligible calories, fat, fiber, and protein, FREE
1 to 2 chipotle in adobo sauce, plus 1 to 2 tablespoons adobo sauce: 20 calories, 1 g fat, 1 g fiber, 0 g protein, $0.37
1 tablespoon tomato paste: 13 calories, 0.1 g fat, 0.7 g fiber, 0.7 g protein, $0.05
Juice of ½ lime: 5 calories, 0 g fat, 0.1 g fiber, 0.1 g protein, $0.12
¼ cup chopped cilantro: 1 calories, 0 g fat, 0.1 g fiber, 0.1 g protein, $0.25
TOTAL: 1750 calories, 56.7 g fat, 76.7 g fiber, 87.7 g protein, $4.52
PER SERVING (TOTAL/4): 438 calories, 14.2 g fat, 19 g fiber, 21.9 g protein, $1.13
PER SERVING (TOTAL/6): 292 calories, 9.4 g fat, 12.8 g fiber, 14.6 g protein, $0.75
Subscribe to:
Posts (Atom)
