Tuesday, July 31, 2012

Antioxidants Could Lower the Risk of Pancreatic Cancer

A diet high in antioxidants could lower the risk of pancreatic cancer by two thirds, according to a new study. After monitoring the diet and health of participants, a clear relationship emerged. Although preliminary research, this is an important stepping stone in cancer prevention research.

In the study conducted by Dr. Andrew Hart in the UK, the long-term health of more than 23,000 people ages 40 to 74 were tracked. After 20 years, results showed that participants who consumed greater amounts of three antioxidants, (selenium and vitamins C and E) were 67 percent less likely to develop pancreatic cancer compared to those with the lowest intake.

This research is the first to show significant results linking the two even though much research is being conducted looking at the relationship between diet and cancer. “Over the years there have been many attempts to find dietary causes for cancer,” said Dr. Vincent Vinciguerra, of the Monter Cancer Center in Lake Success, N.Y. “It is estimated that 35 percent of cancers are related to carcinogens in the diet. Antioxidants have been the subject of numerous trials because in theory they could be instrumental in the prevention of carcinogenesis.”

With about 250,000 deaths worldwide a year, pancreatic cancer research is more important than ever. Besides diet, other risk factors associated with pancreatic cancer are genes, smoking, and type 2 diabetes. Antioxidant-rich foods include many fruits and vegetables as well as whole grains and seafood. Supplementation of vitamin C and E is also recommended to go hand-in-hand with a healthy diet.

Omega-3s Bring Balance To Mood

The American Heart Association currently recommends that all Americans consume fish, which is high in omega-3 fatty acids, twice per week. This recommendation is based upon evidence that a diet high in fish is associated with improved heart health and reduced risk of cardiovascular disease. While this basic incentive for increasing omega-3 intake is well-recognized, relatively less well-known are the potential mental health benefits omega-3s offer us.

Omega-3 polyunsaturated fatty acids may positively influence mood, personality and behavior, according to results of several studies taking place in recent years. In 2006, a study of 106 healthy volunteers revealed that those participants who had lower blood levels of omega-3 polyunsaturated fatty acids were also more likely to report mild-to-moderate symptoms of depression, and be more impulsive in their behavior. By contrast, those with higher blood levels of omega-3s were found to be more agreeable in attitude and behavior.

In addition, omega-3s have also been used in studies involving more serious degrees of depression. One such study, a double-blind, randomized controlled trial involving patients diagnosed with bipolar depression was conducted. As compared to the placebo group, significant improvement was noted in the experimental groups receiving either one or two grams of the omega-3 fatty acid known as ethyl-eicosapentaenoic acid—or EPA—through testing via the Hamilton Rating Scale for Depression (HRSD).

While this disorder involves no major physiological component, it can carry consequences every bit as debilitating; there is little doubt that suffering occurs as a result of its prevalence. According to CDC statistics, an estimated one in 10 adults in the U.S. currently suffers from some degree of depression—amounting to approximately 23 million Americans. Along with the estimated 76 million U.S. citizens who have hypertension, the benefits of such a widely-applicable nutrient—that offers help for both heart and mind—are appealing indeed.

Whey Protein

Whey-protein-rich ingredients may improve blood vessel function in people at high risk of cardiovascular disease.

Researchers from the University of Connecticut in the British Journal of Nutrition report that the consumption of proprietary whey-derived bio-active peptides resulted in an increase in flow-mediated dilation (FDM) of between 1 and 1.5%.

While the clinical significance of the results is uncertain, Dr. Jeff Volek and his co-workers note that reduced FMD is reported to be a forecaster of future adverse cardiovascular events with every 1% decrease in FMD linked with a 12% increase in risk.

A randomized double blind study supported by Glanbia, looked at 21 volunteers with an average age of 55 and average BMI of 27.8. The average FMD of the volunteers at the time of enrollment was 3.7%. Applicants were randomly assigned to consume a single 5 gram dose of NOP-47 or a placebo, and cardiovascular responses were measured for 2 hours after intake.

Results showed that NOP-47 consumption was linked with an increase in FMD to 4.6% after 30 minutes and up to 5.1% after 2 hours, compared to increase to only up to 4.3% in the placebo group. This result indicated that the peptides were quickly absorbed and enhanced endothermic-dependent dilation in older adults, said researchers.

Commenting on the potential mechanism, the researchers said that the changes were independent of circulating associative compounds, like nitric oxide (NO), which did not change during the time of the experiments:

“Future investigation is warranted in individuals at an increased CVD risk to further elucidate potential health benefits and the underlying mechanisms of extracts derived from whey”

Saturday, July 7, 2012

Probiotics and Weight Management

Many of us who have difficulty in managing our weight may have been under the impression that our gut, and its microflora—the bacteria within it that aid in our digestion and absorption of nutrients—are in poor health or balance due to our excessive weight…according to recent studies, there is a strong possibility that it is, in fact, the other way around!

Healthy intestinal microflora can be enough to help you “widdle that waist” .  Studies are not sure which particular species are important, but one thing is clear: slender people and obese people do have different gut flora, in different proportions, and the literature supports the use of probiotics to help you keep a healthy weight.

As the researchers reported:
“Even though diet will affect gut flora composition, most studies conclude that gut flora on its own has an effect on weight. Alteration of the gut microbiota can be an important part of a weight loss program.”

Probiotics may assist the gut in gaining energy from polysaccharides, help the body heighten its sensitivity to insulin, and benefit its ability to cope with inflammation.   Several mechanisms have been proposed as to how gut flora regulates weight. Among these is the idea that the bacterial populations in thinner individuals are actually less efficient at storing energy, in effect burning more calories during digestion and decreasing the “net” amount of energy that is stored as fat.

Probably the most important take away from this study was that while no one will argue that a healthy diet will improve over all well-being, there is much more to the story. Having an imbalance in intestinal microflora may lead to sugar cravings and disrupt satiety, and therefore playing a negative role in our food choices and consumption.

One viable option for restoring this balance may be the use of probiotic supplementation. By repopulating the digestive tract with a greater proportion and variety of microorganisms known to be health-promoting, a more effective balance of this internal ecosystem can be established and maintained.

Saturday, June 30, 2012

How To Avoid Getting Burned This Summer

Everyone needs Vitamin D from the sun. However during these hot summer months, we often fall victim to a little too much.  Now, there’s an alternative to lathering yourself in sun lotion every time you step outside. Supplementation of astaxanthin, resveratrol and omega-3 fatty acids can protect your skin internally from the sun.

Sunburn occurs when UV rays from the sun burn skin tissue, causing the skin cells to die. This often causes noticeable discomfort, and skin to turn a reddish color. This is a hint that it’s actually a type of inflammation, and sunburn can be a very serious condition. The greatest danger is that sunburn is the leading cause of melanoma, the most serious form of skin cancer. Becoming sunburned on a routine basis causes an individuals risk for melanoma to increase dramatically, potentially even doubling after four or more serious sunburns.

Effectively reducing your risk of  harmful sunburn can actually start with the nutrients that enter your body. Research suggests that taking these nutrients can help stop sunburn before it strikes.

1)      Astaxanthin
The super-antioxidant astaxanthin is naturally found in algae and animals that eat the algae. In concentrated form, it can also be found in various supplements. As an antioxidant it has been primarily been used to promote a healthy cardiovascular system. However,  recent research has suggested that astaxanthin helps protect the skin from UV rays, helping to potentially prevent sunburn.

2)      Resveratrol
Recently resveratrol, an antioxidant found in grapes, has received a lot of publicity for supporting healthy hearts as well as alleviating certain symptoms related to cancer. This study also suggests that when resveratrol is absorbed into skin cells, it helps them block UV rays.

3)      Omega-3 Fatty Acids:
A diet high in Omega-3 fatty acids has been shown to combat the inflammatory response of skin after it’s been exposed to the sun for too long. This can limit the harmful effects of sunburn as well as reduce the risk of melanoma. Omega-3 acid is found naturally in fish, but supplementation may be suggested, to ensure that both proper quantity and quality is received.

These nutrients have all shown to be effective in combatting UV rays. Try out these suggestions and let us know if you’ve noticed a decrease in sunburn frequency and intensity.

Omega-3s and Your Kids

Dr. Andrew Stoll of Harvard Medical School calls omega-3 fatty acids “wellness molecules.” And no wonder. Studies show that omega-3 fatty acids are not only great for the heart, but they also may support a child’s memory, focus, and learning.

What are Omega-3s?
Before you head to your local health food store, there are some things you need to know about omega-3 fatty acids. Omega-3 fatty acids are a class of fats that come in three “flavors”: alpha-linolenic acid (ALA), docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA). Fish oil and cod liver oil are rich sources of the two most important fatty acids, DHA and EPA. The body converts the third kind—ALA, which is found in flaxseed and various vegetable oils and nuts—into DHA and EPA.

Omega-3s are vital fatty acids (EFAs). That means two things: one, the body can’t produce all the omega-3s from scratch, so these compounds must be part of the diet; and two (and even more importantly), these fats are crucial for staying healthy.

In the 1970s scientists started to study the health effects of omega-3s when they found the link between the low heart disease rate of the Greenland Eskimos and their diet of cold-water oily fish. But a healthy heart was only the beginning of the story. Numerous studies now indicate that the benefits of DHA and EPA are far more extensive than heart health and play an important role throughout your child’s life.

Your Children need Omega-3 Fatty Acids
As infants, DHA plays an important role in the development of the brain, eyes, and nervous system. This isn’t too surprising, since the retina of the eye consists largely of fatty tissue, and DHA makes up 20 to 30 percent of the brain. As toddlers, EPA and DHA can help improve their vision and cognitive and behavioral development. Once your children start elementary school, DHA remains a key component to their success, as it supports their memory, focus, and cognitive development.

Almost every study of behavioral and cognitive problems in children as well as in adults has shown a connection between low levels of omega-3s and severity of symptoms. Of course, as teens and young adults, DHA continues to play an important role. Recent studies have found that it may support hormonal and sexual health, help mood disorders like depression, and protect their hearts.

Getting your Children Omega 3 Fatty-Acid
It is easy for children to have a deficiency in DHA and EPA due to the fact they can frequently be relatively  fussy eaters. The typical American diet doesn’t help either. It’s loaded with omega-6 fatty acids (vegetable oils such as corn and sunflower, and animals raised on grain instead of green vegetation), trans-fatty acids from fried foods, and hydrogenated oils, all of which interfere with the ability of the body to convert ALA to the much-needed EPA and DHA.

Since omega-3s and omega-6s are building blocks for all sorts of hormones and other important compounds in the body, it’s critical that they be in balance. Nutritionists believe that the ideal ratio of omega-6 to omega-3 in the diet is somewhere between 1:1 and 4:1. Currently, most Americans consume a ratio of 20:1 or higher.

The easiest way to know your children are receiving enough Omega-3s is a dietary supplement. Adding omega-3 rich food will also help, there’s certainly a wide variety to choose from: eggs, dairy products, cereals, cereal bars, peanut butter, and infant formulas. But do they contain enough omega-3s? There is no U.S. recommended daily allowance, but most experts recommend getting anywhere from 500 milligrams (1/2 gram) up to a couple of grams a day of EPA and DHA. So while fortified foods may contribute, they don’t contain nearly enough omega-3s to make up for a diet that’s low in these important nutrients.

Helpful Hints for Optimizing Vitamin and Mineral Intake

Every bit as important as ingesting the right nutrients is making sure that they are properly absorbed by the body. The following is a seven-point list that can help ensure your body is making the best use of all it receives:

1.         Fruits and vegetables should be as fresh as possible and organically grown products are preferable. If vegetable and fruit juices are preferred, those freshly prepared are best, but those prepared in advance are good up to 48 hours before they begin to lose their vitamin content, if refrigerated.

2.         Utilize a blender or food processor to help chop up fruits and vegetables to help make digestion easier. Seeds and nuts can also be chopped or ground up and taken with milk or in powder form.

3.         A vegetable or fruit juicer provides you with an excellent means of optimizing vitamin and mineral intake as juices are much more easily digested and absorbed. When using one, do not forget to include the seeds and leafy parts, as they are high in minerals.

4.         Fruits and vegetables, in addition to being high in vitamins and minerals, also provide roughage to maximize bowel function. This decreases the need for laxatives, whose excessive use can lead to an atonic bowel condition.

5.         If taking commercial supplements that are in a tablet form, they will be better absorbed if they are crushed before ingestion. Liquid or capsulized forms are better absorbed by the elderly population, as less digestion is required. They are always more effective if taken with a meal.

6.         Refined carbohydrates such as white and brown sugar will decrease immune function and predispose one to diabetes if used frequently and in large amounts. Calcium and magnesium loss also increases, which leads to wasting of bone and a higher incidence of fractures.

7.         Protein from fish, chicken, rabbit, nuts, tofu and tempe are better than red meats sources due to their having less fats and a wider variety of amino acids which are better utilized by persons over age 25. In addition, ground beef consumed in fast-food establishments are often very high in salt as well as fat.

Hopefully, these points will help provide some simple means for increasing the absorption of these important micronutrients on a daily basis. Remember, you are what you eat, and measures like this can help you be your best!