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Obesity Linked to Bad Bones

obese, bone health, overweight, scaleExcess body fat may contribute to poor bone health, according to a new study of 115 18- and 19-year-old women. The finding adds to the growing list of obesity-related health problems, which already includes an increased risk of heart disease, stroke, cancer, and others.

In the study, researchers conducted three-dimensional bone scans of women with normal body fat (less than 32 percent) and high body fat (greater than 32 percent). Women with high body fat had bones that were 8 percent to 9 percent weaker than those with normal body fat.

While it’s not known exactly why excess fat is bad for bone health, animal studies have found that obese rats produce more fat cells than bone cells in bone marrow, which may explain the weakening.

The finding could be particularly damaging for obese children, whose bones are still developing. Childhood obesity, researchers said, could have a lasting negative impact on the skeleton.

More than 64 percent of U.S. adults, and 16 percent of children, are obese.

Sources:

Dr. Mercola''s Comments Dr. Mercola's Comments:

It’s no mystery that carrying around extra weight has many far-reaching implications on your physical and emotional health, and this link to bone weakness is just the tip of the iceberg.

Most of you know that two out of three U.S. adults, and one out of three kids, are overweight. Another 32 percent of adults, and 17 percent of kids, are obese, so this is impacting a tremendous number of people.

For children, peak bone mass during childhood and adolescent years is one of the major contributing factors to osteoporosis. So this makes building strong and healthy bones that much more critical during these early years of development.

The good news is that exercise -- running, jumping, and doing other types of active play -- is one of the best tools to help your kids build excellent bone mass early on. This, of course, will also help them to stave off obesity, or to lose weight if they need to.

Adults who are overweight or obese can also benefit two-fold from exercise. Aside from the weight loss, exercise has been linked to improvements in bone mass in this age group as well.

The Hormone Connection

Obesity impacts your bone health in a number of ways, but one is most certainly linked to your delicate hormonal balance.

Your ability to burn fat is regulated by very powerful hormones, the most significant of which is leptin. When leptin in your brain is low, it is an indication that you need to eat more and store more fat.

If you eat a diet that causes surges in leptin -- one that’s high in sugars and grains -- your body can become resistant to leptin’s signals, just as it can become resistant to insulin (and then become diabetic).

Low leptin signaling will tell your body to store more fat, leading you to gain weight and eventually become obese. But leptin impacts much more than your weight.

During leptin-resistance, your brain is telling your body to eat more and store more fat, but there is a miscommunication about where to put all of the excess fat. Some of it will be stored in your abdomen and liver, which throws your liver’s function off-kilter and contributes to the breakdown of your muscle and bone -- causing weakness and osteoporosis.

As said by Dr. Ron Rosedale, MD, one of the leading experts on leptin:

“The communication and knowledge of where to put calcium is also disrupted. Calcium is deposited in your blood vessels instead of your bone, which contributes to osteoporosis while calcifying and hardening your arteries.”

So not only does eating a diet full of sugars and grains cause you to gain weight, but it can directly lead to increased problems with your bone health.

How to Lose Weight and Strengthen Your Bones

You and your children alike can use the following tips to return to a healthy weight and support your bone health at the same time.
  • Increase your intake of omega-3 fats (from krill oil) while decreasing your intake of omega-6 fats (from vegetable oils). Too many omega-6 fats, and too few omega-3, has been linked to low bone density.
  • Make sure you’re getting enough vitamin K. It serves as the biological "glue" that helps plug the calcium into your bone matrix. Green leafy vegetables are excellent sources of vitamin K, but even better is natto, a fermented soy food that I personally eat nearly every day (it has the highest concentration of vitamin k in the human diet).


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Comment on This Article Community Comments (27)
 
 
Posted On Dec 07, 2007
According to the article, "Lewis said the exact mechanisms by which excess fat hinders bone strength are unclear, but studies of obese rats show that they produce more fat cells in the bone marrow and fewer bone cells. Since fat and bone cells originate from the same precursor, it may be that fat cell production is favored over bone cell production in obese people."

Maybe I'm just a simpleton too stuck on Occam's razor to think of the deeper possibilities, but it seems to me that obese people tend to live a sedentary lifestyle and eat foods high in calories, low in nutrients and foods & drinks that also shift the body toward an acidic state. That combination would set the stage for fat cell production (due to excess caloric intake), as well as not provide the body with what it needs to build strong bones (exercise and good nutrition) while creating an acidic pH that would pull calcium out of the bones to try to buffer the blood.  Next thing you know - more fat cells, less bone. 

Just a thought....

 
Sally_Carr
Apprentice User Apprentice User, Joined On 6/2006
Sally_Carr  
Replied

qualitygeek
Savvy User Savvy User Joined On 10/2007
qualitygeek  
 
Posted On Dec 07, 2007
entia non sunt multiplicanda praeter necessitatem

or sometimes the simplest answer is the best answer...

exercise & proper nutrition - nah, too simple....gotta have a pill to prevent that nasty old osteo-whatever...


Russ Bianchi
Savvy User Savvy User Joined On 9/2006
Russ Bianchi  
 
Posted On Dec 10, 2007
Invariably 94 pounds per year per capita of High Fructose Corn Syrup currently (2007), that did not exist in the human food chain in 1970, and is the least costly bulking ingredient for increased profit, after air, water and salt, in the food and beverage chain, that is directly metabolized and converted to blood triglycerides, and stored body fat, IS the main reason for such pandemic obesity.

Uncle Russ


michellebu
Novice User Novice User Joined On 12/2007
michellebu  
 
Posted On Dec 27, 2007

"it seems to me that obese people tend to live a sedentary lifestyle and eat foods high in calories, low in nutrients and foods & drinks that also shift the body toward an acidic state"

This seems to be a prevalent belief that is usually coupled with the presumption that if the obese people had chosen a "better" lifestyle rather than a "lazy" one, then they wouldn't be in the state they're in.  I would like to challenge the presumption by saying that there is probably already a dis-ease (the ROOT cause) in these people that leads them to a sedentary lifestyle and lousy diet rather than the lifestyle and diet leading to the dis-ease.  It's easy to lay blame on these people and I think they blame themselves.

I suspect it is a combination of factors (genetic? environmental? etc) that lead to the initial dis-ease but would LOVE to be able to figure out why my son had/has such low energy and food cravings (and an overweight tendency) while my three daughters are regular/high energy, no cravings, and slim.


 
 
 
Posted On Dec 27, 2007

I am a nutritionist and have worked with obese people. These people are active, want to be healthy and do everything they have been told to do to lose weight. And there lies the problem. They have been given bad advice. Obesity is a much more complex issue then "calories in, calories out". For example, I am seeing an incredible rise in the amount of hypothyroidism (low thyroid) out there, but in most cases due to autoimmune thyroiditis (Hashimoto's disease) where the body is attacking the thyroid. These people have a terrible time losing weight. But there often is a strong dietary connection - in this case gluten intolerance. Once they get off gluten (and are strict about this) the thyroid antibodies often drastically come down. Doctors can check for thyroid antibodies. Another probem associated with weight loss resistance is high blood insulin levels (as Dr. Mercola has said). With this issue, you could be running hard on a treadmill for hours and lose nothing. High blood insulin levels encourage the body to hang onto fat. A third issue is toxicity. Fat soluble toxins (like those from petrochemicals) are stashed into fat cells to protect the vulnerable parts of the body. You would not want to go on a fast fat burning program if this is your problem as you could unleash a lot of toxicity into the bloodstream too quickly. Identifying an individual's unique biochemical challenges and working at this level is the best way to lose weight (if needed) and to be healthy.      


 
SarahB
Novice User Novice User, Joined On 10/2006
SarahB  
Replied

PepperR23
Savvy User Savvy User Joined On 6/2006
PepperR23  
 
Posted On Dec 27, 2007

I agree with your comments but would add that the huge amount of soy in the American diet also contributes to obesity and thyroid disorders.



honeyface
Novice User Novice User Joined On 3/2009
honeyface  
 
Posted On May 08, 2009

Hi, I tried to pm you but it won't let me unless i'm a friend. My question is, i'm looking into training as a dietitian (hope to specialize in celiac if possible) and was just wondering what course / qualification you had to take to work as a nutritionist? I realise if you're in the states it may be a bit different, but you never know it might help!

thanks


 
 
 
Posted On Dec 27, 2007

I think there is a lot of discrimination against fat people like there still is to a lesser extent toward fats in the diet.

You still have lots of health care people touting a "low fat" diet when anyone who has actually studied the subject knows better.  If you want to see bones deteriorating, look at studies of young women and older women who are bulemic or anorexic, even borderline cases.  Many years of starving themselves keeps many nutrients from reaching healthy bones, which begin to look like swiss cheese as they get older.  The "experts" have to have something to blame for poor health care and big pharma needing to make giant profits, while ignoring all the sugars and high glycemic starches going into foods these days.  So let's all blame the fatties.  


 
purchaser
Novice User Novice User, Joined On 6/2006
purchaser  
 
 
 
Posted On Dec 08, 2007
"The exact mechanisms by which excess fat hinders bone strength are unclear."
I think that majority of obese people don't do hard work for living. Physical activity makes bones and muscles stronger.
Lack of physical activity leads to weakness in both bones and muscles.
I bet a dollar that porky carpenters or sumo restlers don't have weak bones.
Is it diffucult to understand?

 
Michael Vilkin
Novice User Novice User, Joined On 12/2007
Michael Vilkin  
Replied

Michael Vilkin
Novice User Novice User Joined On 12/2007
Michael Vilkin  
 
Posted On Dec 08, 2007
"The exact mechanisms by which excess fat hinders bone strength are unclear."

There is a mistake in logic.
The author presumes that "excess fat hinders bone strength".
Based on what? This is a case where statistics are misapplied.
I think that majority of obese people don't do hard work for living. Physical activity makes bones and muscles stronger.
Lack of physical activity leads to weakness in both bones and muscles.
It's not that "excess fat hinders bone strength".
It's that lack of physical activity leads to weakness in bones and muscles.
I bet a dollar that porky carpenters or sumo restlers don't have weak bones and muscles.
Is it diffucult to understand?

 
 
 
Posted On Dec 09, 2007
Its not rocket science folks.... If all the 'bad' food such as artificial sugar, soft drinks, refined sugar, flour, table salt, coffee plus cigarettes and liquor is highly acidic then the body has to pull calcium from somewhere to bring the PH of the blood back to a normal reading just to keep that person alive!  Most obvious place to get that calcium... teeth and bones.

 
Goji
Apprentice User Apprentice User, Joined On 4/2007
Goji  
 
 
 
 
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