🚀 go-pugleaf

Elmo wrote:
> 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.

I agree that it's not the only factor.  The OP's article listed 
endocrine disruptors as #2 out of 10.
> 
>> 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.
> 
Instead of "make hogs fat" I should have said "make hogs put on weight." 
  If their metabolism were higher, more of their food intake would go 
for energy.
> 
>>
>> 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.
> 
> 
>