Search
Create an Account - | Customer Service | Healthcare Professionals | My Zone |INTERNATIONAL 
Subject: BMI

You are not authorized to post a reply.   

Author Messages
John User is Online
Posts:331
Zoner
Zoner

08/18/2009 12:52 PM
Dr. Sears calculation is different than BMI; however, just thought this factual info on BMI was interesting:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Maybe Your BMI Doesn't Really Matter
Other Measures May Tell More About Your Health
Melissa J. Luther, Contributing writer

Achieving a normal body mass index rating has become a goal for some fitness enthusiasts and weight-loss seekers.

Unfortunately, this overly simplified calculation that takes your weight in kilograms and divides it by the square of your height in meters is being misused. BMI does not take into account individual body differences and was never designed to do so.

The original calculation was developed by a Belgian mathematician, Adolphe Quetelet, who was looking for a profile of the average man. He did not use it to assess health in any way, Slate.com says.

Then, in 1972, obesity researcher Ancel Keys was looking for the best way to predict body-fat percentage in population groups. Quetelet's equation was the best predictor out of those he tried, and Keys christened the equation the "body mass index." Keys never intended the BMI to be used for individual assessment, only for evaluation of population groups.

But by 1985, the National Institutes of Health was recommending BMI as an easy way for doctors to determine which patients were at increased health risks due to obesity.

What's Wrong With BMI

BMI has several inherent difficulties as a measure of health risks. First, it does not take into account body composition. Both fat and lean muscle contribute to a person's weight, but only excess fat increases health risks. BMI often incorrectly places muscular people into the "obese" category.

Second, the distribution of fat matters more than the mere presence of fat. Fat deposits in the abdominal area are the most dangerous, but a simple measure of weight and height fails to account for that difference.

Alternatives To BMI

Alternatives to the BMI may be more accurate, especially in some population groups.

Waist circumference, for example, is an especially good measure for determining abdominal obesity, the type most associated with obesity-related diseases such as diabetes and heart disease.

Scott A. Lear of the School of Kinesiology at Simon Fraser University, in a 2005 letter to the editor of Clinical Chemistry, presented arguments in favor of waist circumference. He pointed out that not only is BMI a more complicated calculation than WC, but most patients misunderstand the concept of BMI.

Lear argued that "BMI is flawed because changes in BMI may be attributable to changes in skeletal muscle rather than body fat, whereas WC changes are attributable entirely to changes in abdominal fat." It matters because central body fat is positively associated with insulin resistance, part of diabetes.

Another option is waist-hip ratio. This measurement divides the circumference of the waist by the hips, measured at the widest part, around the buttocks.

Recent studies suggest this measure is especially useful in people over age 75.

It has long been recognized that the risks associated with a high BMI appear to decrease in this group, and a high BMI no longer correlates with increased mortality. A high WHR, however, does translate to increased mortality risk in the elderly. WHR may also be a useful predictor of cardiac status, at least in overweight patients.

In an April 2001 letter to the editor of the Western Journal of Medicine, Rudolf E. Noble cites studied conducted at the Cathedral Hill Obesity Clinic in San Francisco. The researchers looked at blood pressure, cholesterol ratios and triglyceride levels. WHR was significantly linked to all three measures, while BMI was linked only cholesterol.

"Waist-to-hip ratios foretell more regarding cardiac status in these patients than measures of height and weight," Nobel wrote.

WHR has fallen out of favor as a measure of risk, and the American Heart Association Web site states that it is less accurate than either BMI or waist circumference.

BMI is useful as a statistical measure of population groups. It does not, however, provide useful information on individuals and should not be used to assess individual risk.

~john
<>< <>< <>< <>< <>< ><> ><> ><> ><> ><>


<>< <>< <>< PTL Col 3:23-24 ><> ><> ><>
Lynne User is Online
Posts:34
Aspiring
Aspiring

10/12/2009 9:58 AM
John ~
I think this is not only helpful information, but really interesting!
You are not authorized to post a reply.



ActiveForums 3.6
Enter your email address:
Learn More
Facebook
Sm New
Helpful Tools
Popular Links

Dr. Barry Sears, PhD.Dr. Barry Sears is a leading authority on the dietary control of hormonal response. A former research scientist at the Boston University School of Medicine and the Massachusetts Institute of Technology, Dr. Sears has dedicated his research efforts over the past 30 years to the study of lipids. He holds 13 U.S. Patents in the areas of intravenous drug delivery systems and hormonal regulation for the treatment of cardiovascular disease.

A turning point in his research occurred in 1982. That year, the Nobel Prize in Medicine was awarded for discoveries of the role that specialized hormones, known as eicosanoids, play in the development of cardiovascular disease, diabetes, auto-immune diseases, and cancer. Since eicosanoids are only generated from dietary fat, Dr. Sears reasoned that one could apply intravenous drug delivery principles to nutrition in order to control these exceptionally powerful hormonal responses with laser-like precision. In essence, his approach treats food as if it were a drug.

This area of his research led to various patents in the area of hormonal control by essentially using food as an oral drug delivery system to modulate eicosanoids especially for cardiovascular, diabetic, and neurological patients.

The impact of Dr. Sears’ revolutionary work in the dietary control of hormonal response began with the publication of his landmark book, The Zone. Since its publication in June 1995, The Zone has sold more than 2,000,000 hardcover copies, and became a #1 best seller on the New York Times book list. In addition, The Zone has been translated into 22 languages indicating a worldwide response to Dr. Sears’ research. His second book, Mastering the Zone, published in 1997, also became a New York Times bestseller with hardcover sales in excess of 500,000 copies to date. His third book, Zone Perfect Meals in Minutes, published in 1997, quickly became one of the best-selling cookbooks of 1997 and an another New York Times bestseller. The Anti-Aging Zone was published in 1999 and provides the molecular insights into how the Zone Diet can reverse the aging process. The Omega Rx Zone, published in 2002, explores the molecular foundation of chronic disease and how high-dose fish oil can dramatically reverse it. His latest book The Anti-Inflammation Zone discusses how to combat silent inflammation in order to reduce the risk of cancer, heart disease, diabetes, dementia, and many other inflammatory conditions—and how to reverse these conditions if they are already present. To date more than 5 million hardcover copies of his Zone books have been sold in the United States.

His research has elevated food from more than simply a source of calories to being recognized as an exceptionally powerful drug. Because of his revolutionary research, Dr. Sears has been a frequent guest on many national programs such as 20/20, Today, Good Morning America, CBS Morning News, CNN, and MSNBC.

Dr. Sears continues his ongoing research as President of Zone Labs, a biotechnology company in Danvers, MA as well as the President of the non-profit Inflammation Research Foundation in Marblehead, MA. In addition to continuing research on the hormonal effects of food, Dr. Sears has expanded his research in developing innovative dietary approaches to treating cancer and neurological conditions, as well as his on-going work in treating cardiovascular diease and type 2 diabetes.

I have been taking the Fish Oil for over 3 years now. I am 44 playing hockey and working out. The Fish oil helps with the pain that I get from playing hockey. It greatly enhances my performance on the ice and while working out. I have noticed a big difference in my energy, attentiveness and memory. If I miss a day for whatever reason, I notice a huge difference and it feels like something is missing. Anyway that is my short little story and it comes from the heart.

– Carter B.

 

I am a nutritionist and Ph.D. doctor of health and nutrition. For Dr. Sears to figure out balancing fat, carbs and protein, is really beyond brilliant. It is a milestone in diet history. I go over people's diet/emotional journals. Mostly all the time, we discover that the fatigue, irritability, unstable emotions were due to the imbalance in their diet. Using the Zone to balance them out, helps control weight, roller coaster emotions and gives them energy. Dr. Sears is so right when he says food is medicine. He has figured out the most powerful drug combination going, called The Zone.
Best and healthy wishes,

– Elaine W., Ph.D., N.C., M.A.

 

I have a very exhausting job as a flight attendant. I read the "Omega Rx Zone" about 4 years ago and started taking the fish oil. I am 47 and have been flying for 22 years. I am very active, I run and lift weights. But combining lack of regular sleep, a physically demanding job, and irregular eating patterns this job takes a toll on the body. Since taking the fish oil, I have noticed that I do not get exhausted. I get tired, but not exhausted. I stopped taking it for a couple of months and then started taking another company's fish oil. I started getting exhausted again. I came back to Zone Labs and will continue with the fish oil for the rest of my life. I believe in the product and it makes a huge difference in my life. It makes a difference with my running as well. I also bring the bars and shakes with me on the road. It is almost impossible to eat the way I should at work. I haven't found the right secret. At least I have my Zone fish oil, bars, and shakes.

– Kathryn S.

 

I have been in the Zone, for about 1 month now. I wanted to share with you how wonderful I think this program is. I have been a personal trainer for almost 10 years and actively compete in numerous athletic activities. The Zone program has helped me to achieve a better awareness of my nutritional needs and the results I have seen are amazing! I have lost nearly 13 lbs since I have been in the Zone. I feel more mentally alert, more focused at work, have greater intensity during my training, have made significant strength gains, and just feel better over all. With that said, I would like to thank you for helping me in my quest for "super-health"!
Thank you!

– Rob Y.

 

I read 'The Zone' and as exactly as I could followed the advice for diet. I noted weight loss progress. Over six months, I lost 33 pounds. One year has passed since then. I have maintained the new weight, guided always by Zone concepts. The Zone is powerful - I have found it fantastic and I am very grateful to Dr Sears.

– Lyn S.

 

Before I stumbled across the Zone I was weighing close to two hundred pounds and I was depressed. I used to be a gymnast as a young man. I would think, "look at me now," when I looked in a mirror. The day I found 'The Zone' book, I was intrigued and as I read it the science made sense and so, I began to follow the "treatment". I began to lose weight and I was feeling way more energetic. I am forty two years old, I am very active and my weight is down to 162 lbs, 38 pounds lost on the Zone. I cycle, walk, jog, swim and I can now perform some of the more simple gymnastic skills I did twenty years ago...I literally feel like I have turned back the clock.
Thank you!

– Jack J.

 

I have been on the Zone diet for 7 years. I did not go on the diet to lose weight necessarily; but fairly quickly I lost 25 pounds, going from 190 to 165; from a 36-inch waist to a 32-inch waist. I primarily did the Zone to live healthier. My health is excellent now. I just turned 62 years old. My Zone is my eating lifestyle now; I seldom stray; and I do not miss anything. It is The Good Life.

– Curtis Y.

 

My wife's doctor told her to read "Enter the Zone" and to do the diet, so I told her I would do it with her. After only one week on the plan we went on a strenuous hike (the first of the year), and when we stopped at our favorite coffee shop on the way home I was able to get out of the car and stand upright and walk into the place without pain or stiffness. The Zone had eliminated all the inflammation that had always forced me to stumble all humped over into the coffee shop any time we skied or hiked all day.
Thank you, Doctor Sears.

– Larry C.

 

I used to have a lot of knee pain when I walked or ran. I have been taking Omega Rx for almost a year now, and rarely have any pain. I believe it is the anti-inflammation action of the oil. I feel smarter as well. Thanks for developing such a superior oil!

– Joe W.

 

Prior to following the Zone Diet, my body fat was around 15% and my weight around 153 pounds. No matter what I did, my weight and body fat did not change much. I regularly cycled 20-30 hours per week logging well over 400 miles. That had little impact on body fat or weight. Diet also seemed to have little impact on body fat or weight. Within a couple of months of following the zone diet, my weight dropped rather quickly to 142 pounds and body fat to about 8%. I still regularly cycle up to 20 hours per week (during the summer). I have also started strength training. I eat about 16 blocks per day. I take 3.6 grams of fish oil per day, along with Vitamin E, Alpha Lipoic Acid, CoQ10, and B & C vitamins. I also take GLA, which in my opinion, has significantly reduced fatigue and improved recovery times after exercise.

– Jeremy S.

All polyphenols have antioxidant properties than can be measured by their Oxygen Radical Absorption Capacity (ORAC), but not all polyphenols have anti-inflammatory properties. The polyphenols in Dr. Sears’ Zone Polyphenol Plus have been carefully chosen to have both.

Polyphenols are the phytochemicals that not only give fruits and vegetables their color, but also help regulate inflammation. In addition, polyphenols also activate the key enzyme (AMP kinase) that helps restore cellular ATP levels. Polyphenols also help regulate the activation of inducible inflammatory proteins (such as COX-2 and inflammatory cytokines).

There are more than 4,000 known polyphenols, and the richest sources are fruits and vegetables. In general, the more color a fruit or vegetable has, the richer the polyphenol content.

Why OmegaRx From Zone Labs?

Certified Purity and Proven Potency

Zone Labs’ Ultra Refined Omega-3 Concentrates are three times fresher and contain less than 1/10th the mercury than what is allowed by the Norwegian Medicinal Standard and European Pharmacopoeia Standard

Zone Labs adheres to the International Fish Oil Standard (IFOS), an independent third party validated laboratory quality standard that is more rigid than any other global standard for purity.

  • No company in the worlds runs more tests with IFOS than Zone Labs
  • Zone Labs receives a 5 out of 5 star IFOS rating for every batch it tests
Standard IFOS Standard for a 5-Star Ranking Council for Responsible Nutrition European Pharmacopeia Norwegian Medicinal Standards
Peroxide < 3.75 meg/kg 5 meg/kg 10 meg/kg 10 meg/kg
Totox Levels < 20 meg/kg 26 meg/kg NA NA
Lead < 10 ppb 10 ppb 100 ppb 100 ppb
Mercury < 10 ppb 10 ppb 100 ppb 100 ppb
Dioxans and Furans < 1 ppt 2 ppt 2 ppt 2 ppt
PCBs < 45 ppb 90 ppb NA NA

 

 

 

 

 

"IFOS – THE TOP GLOBAL PURITY STANDARD FOR OMEGA-3 FROM FISH"

Zone Labs products show no detectable lead or mercury when tested down to 10ppb, which is 10 times below the Norwegian Medicinal Standard and European Pharmacopoeia Standard limits.

Zone Labs products are three times fresher than the minimum allowed by the Norwegian Medicinal Standard and European Pharmacopoeia Standards (based on average peroxide values).

 

Zone Labs starts with only wild, small fish from pristine Chilean waters and ends with proprietary validation and testing processes to achieve an IFOS certified 5 star rating.

8-Step Manufacturing Process - Quality Assured

Testing to specification all raw materials, bulk products, packaging material and finished products – always using stringent internal standards and in-process testing.

  1. Extraction of fish oil
  2. Winterization – remove limited amounts of saturated fats
  3. Absorption – remove heavy metals
  4. Preliminary Molecular Distillation – refining “touch up” to reduce contaminants
  5. Oil conversion to ethyl esters
  6. Ethyl ester thermal fractionation – remove additional saturated fats
  7. True Molecular Distillation – final refining to remove pcb’s and long-chain monoenes
  8. Rigid Processes – proprietary validation, inspection and encapsulation methods. Independent lab verification of IFOS requirements and certified 5 star rating

 

Clean Sources

No farmed fish. No large fish. Pristine waters.

Zone Labs starts with wild sardines & anchovies fished from cold, pristine waters off of South America where there are less environmental impurities.

 

A recommended serving of Zone Labs Ultra-Refined Concentrates delivers 8 times more omega-3’s than a typical retail fish oil supplement.

Most fish oil supplements have 30% or less of the healthy omega-3s EPA and DHA, with the remaining 70% of the capsule containing unbeneficial, lesser refined fatty acids that contribute to their bad taste and gastric side effects.

 

Getting a clinically valid dose of omega-3’s is easy with Zone Labs’ Ultra-Refined Omega-3 Concentrates.

Typical Retail Dose = 300mg omega-3

Standard Zone Dose = 2400mg omega-3

 

A serving of canned tuna has 12 times less omega-3’s than
Zone Labs Ultra-Refined Omega-3 Concentrates

Commonly consumed fish and shellfish in the United States

Mercury Source: Food and Drug Administration, FDA 1900-2004, “National Marine Fisheries Service Survey of Trace Elements in the Fishery Resource". Omega-3 Level Source: American Heart Association Website.

  Mercury level
in parts per million (ppm)
Omega-3 fatty acids
(milligrams per 3-oz. serving)
Zone Omega-3 Products < 0.01 2400 (standard 4 capsule serving
Salmon (fresh, frozen) 0.014 1200
Flounder or sole 0.050 480
Pollock 0.041 450
Crab 0.060 400
Scallops 0.050 290
Shrimp ND* 290
Catfish 0.050 270
Clams ND* 250
Cod 0.095 210
Canned Tuna (light) 0.120 200
* ND: Mercury concentration below detection limit.

 

OmegaRx®

Zone Labs’ leading product. OmegaRx delivers all of the benefits of Zone Labs’ ultra-refined omega-3 concentrates.

Advantages

  • Delivers clinically proven health benefits from the omega-3 fatty acids EPA and DHA*
  • Promotes a healthy heart, healthy brain, healthy immune system, healthy circulatory system, healthy joints, healthy moods, healthy triglyceride levels and a healthy pregnancy*
  • Combats silent inflammation

 

*These statements have not been evaluated by the Food and Drug Administration.

These products are not intended to diagnose, treat, cure or prevent any disease.

 

 

 

A great way to stay In The Zone!
Start getting Zone recipes, tips, articles and exclusive promotions sent right to your inbox!

After you provide your email address we’ll send you a confirmation email. You can “opt-out” of this program at anytime by following the simple instructions provided at the end of every email we send you. We will never send too many emails (spam) and we’ll never sell of rent your email to another company.

If you are already registerd with ZoneDiet.com and are receiving emails from Dr. Sears Zone then you do not need to provide your email address to us at this time.

To assure your Zone emails reach your inbox, be sure to add our email address,
reply@zoneliving.com, to your address book.


Copyright 2007 by Zone Labs Inc        Privacy Statement | Terms Of Use | About Zone Labs | Contact Us | Affiliates | Press Room | Careers | Site Map