Showing posts with label high. Show all posts
Showing posts with label high. 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.
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.
High Sugar Diet Halts Weight Loss Efforts
Sunday, January 19, 2014
(Article first published as Study Shows Source of Calories Important to Weight Loss Efforts on Technorati.)
Is it true that a calorie is just a calorie, regardless of whether it comes from a fat, protein or carbohydrate source? A basic physics class will demonstrate that in a laboratory setting, all calories require the same amount of energy to burn regardless of type.
In his book Living Low Carb, nutritionist Dr. Jonny Bowden explains the results of a Swedish study where volunteers were given 20 extra calories from candy or peanuts each day for each half pound of body weight. That amounts to an extra 18,200 calories for a 150 pound individual over the course of 2 weeks or slightly over 5 pounds of additional weight from a simple calorie conversion. The group eating high protein peanuts gained a slight amount of weight, but the candy eating subjects packed on 3 times as much weight from the extra sugar calories.
Protein has a much different effect on metabolism than simple carbohydrates. Proteins such as lean meats, nuts, seeds and whey do not stimulate blood sugar and help to maintain ideal insulin levels. Protein calories are converted to energy as long as total calories from all sources are not extreme. The body is much less likely store calories as fat since triglycerides are not formed in excess and insulin remains effective in managing blood sugar levels. Studies have shown that protein consumption increases metabolic rate at rest which burns more calories throughout the day.
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Our body uses a highly evolved energy management system that takes cues from the total number of calories consumed, as well as the calorie source to adjust our metabolic rate and determine fat storage patterns. A successful weight loss plan must include the right balance of nutrients to ensure weight loss success.
All Calories Are Not Created Equal
Our body regulates our genes based on the food we eat. Long standing research has shown that the quantity of foods we consume influences special genes that regulate longevity and the onset of disease. In the same fashion, the type of food we eat affects our metabolism and the effectiveness of insulin to control blood sugar. A diet high in refined carbohydrates that quickly convert to glucose results in insulin resistance and a host of metabolically mediated diseases.
Excess Carb Calories Stored as Fat
Simple Carbs Raise Blood Sugar, Fuel Fat Storage
Calories from processed carbohydrate foods including candy, bread, pasta and baked goods cause blood sugar levels to surge after every meal. Eventually this leads to insulin resistance as glucose is not efficiently used for energy and remains in the blood. The body responds by converting the sugar into triglycerides or blood fats which are then easily stored in your fat cells.
Eating Protein Increases Base Metabolism
Successful weight loss remains out of reach for the vast number of people who begin the journey. Many more people would be able to achieve their goal by eliminating refined carbohydrates and substituting healthy protein choices in addition to calorie restriction. By working to control blood sugar levels, you’ll improve your health and ensure your weight loss success.
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