🚀 go-pugleaf

Bart Byers wrote:
> Louis Boyd wrote:
> 
>> Bart Byers wrote:
>>
>>> Dr. Wayne Simon wrote:
>>>
>>
>>> In the 1940s weren't farmers feeding hogs poisons to reduce their 
>>> thyroid hormone so they would gain more weight on less food?  In the 
>>> 1950s, didn't they discover that they could do the same thing by 
>>> feeding them polyunsaturates?
>>>
>>> Corn oil appeared in 1889 and soy oil in 1930.  The heavy propaganda 
>>> to substitute polyunsaturates for animal fats came later.  Didn't 
>>> most American become overweight as polyunsaturates took over?
>>
>>
>> The fact that two things happen at the same time does not prove or 
>> even indicate that one caused the other.
> 
> 
> If I kept a boat in a freshwater marina and began finding corrosion 
> after I moved it to a saltwater marina, you could say it was 
> coincidence.  But if I knew similar corrosion had been found inland when 
> roads were salted, I'd have a stronger reason to blame salt.
> 

There you have a known mechanism which supplies the causal connection.
Your assertion regarding polyunsaturated oils is somewhat less solid.
I would be suspicious of any single-factor model that tries to explain
increased obesity in the USA.

> Farmers used to think calories were the way to fatten hogs.  Coconut oil 
> was a cheap fat to add to feed, but it didn't make hogs fat.  It was 
> polyunsaturates that turned hogs into couch potatoes.

A balanced nutrient profile based on corn and soy with a few vitamins and
minerals thrown in for good measure has been the standard for more than
30 years.  Smaller amounts of added fat can, under some circumstances,
increase the rate of gain but as they are more costly, the marginal increase
in the cost per pound of gain limits their use.


> 
> Polyunsaturates inhibit enzymes required to turn T4 to T3.  Low thyroid 
> can cause obesity, cancer, clot problems, and high cholesterol.  In 2001 
> the American Association of Clinical Endocrinologists recommended 
> changing the standards for normal thyroid levels because millions of 
> Americans with normal levels were suffering the effects of low thyroid 
> levels.  In other words, being overweight wasn't the only norm in 
> America; so were insufficient thyroid levels.



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