1

votes

Is sugar, not fat, exposed as deadly villain in obesity epidemic?

Answered on August 19, 2014
Created March 20, 2013 at 7:35 PM

I usually steer clear of weight loss issues but this was in the Guardian today

Beef from grass-fed cattle as in Argentina is fine, but not from corn-fed cattle as in the US.

http://www.guardian.co.uk/society/2013/mar/20/sugar-deadly-obesity-epidemic

[title changed to make it a question - stupid]

Medium avatar

(10611)

on March 20, 2013
at 10:36 PM

If anything, it's the fat. Overfeeding cows on corn is not much different from overfeeding ducks on corn, though the objective is meat marbling instead of fatty livers. In either case, the fat deposits are from the dietary corn oil, which would result in a different type of adipose or liver fat compared to grass fed animals.

Medium avatar

(39821)

on March 20, 2013
at 09:55 PM

Nope; still calories.

Medium avatar

(10611)

on March 20, 2013
at 09:46 PM

I hunted around a little more and edited my comments @Mscott. I had something in there about the romance of lean vaqueros on the pampas, which I took out. The Oxford lecture summary sounded like Lustig was indulging in that kind of gusty hyperbole.

782d92f4127823bdfb2ddfcbcf961d0e

(5231)

on March 20, 2013
at 09:36 PM

Thanks, thhq. I was just curious how that comment fit in with the rest of the article.

A2c38be4c54c91a15071f82f14cac0b3

(12682)

on March 20, 2013
at 09:35 PM

It wouldn't be the first time lustig basically made something up to support his argument.

Medium avatar

(10611)

on March 20, 2013
at 09:32 PM

It's the same step in the same direction, the old Lustig filibuster against sugar in a new place.

86c97b2779feab3c330f5e1c5fea7e25

(2312)

on March 20, 2013
at 09:16 PM

Uhhh ya, this is kind of the point of "Eat high quality meats"

Medium avatar

(10611)

on March 20, 2013
at 08:57 PM

@MiM, this is just Lustig crossing the pond to deliver his lecture at Oxford, you could get it from his book.

782d92f4127823bdfb2ddfcbcf961d0e

(5231)

on March 20, 2013
at 08:30 PM

Your quote is about the 'dietary amino acids' in corn feed which weren't discussed in the article. I would've liked to know more about how they differ from the amino acids in protein and what causes them to be particularly insulinogenic.

Ebb10603524dd22621c1155dd7ddf106

(19150)

on March 20, 2013
at 07:38 PM

... is there a question here? It is an interesting article, though.

Ebb10603524dd22621c1155dd7ddf106

(19150)

on March 20, 2013
at 07:38 PM

... is there a question here?

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3 Answers

4
Medium avatar

(10611)

on March 20, 2013
at 08:50 PM

I toured the Argo IL cornstarch plant about 10 years ago. The dry dent corn is resoaked to soften, then ground up and run over a filter screen to remove the coarse hulls. This is what they sold for cattle feed, because (as I remember) it had high protein content.

A lot of midwest farmers feed whole corn though.

Edit: Try as I might, I can't find ANY study which suggests that corn amino acids are a cause of differences in American meat quality. Lustig attacks cattle overfeeding with corn, which causes fat marbling, which makes cows similar to humans in being insulin resistant and sick. The purported low amino acid quality of corn-fed beef probably results from overfeeding with corn's main component, sugar-like cornstarch, and not from the corn's amino acids.

The inference of amino acid differences comes from a series of intuitive steps. I can find no scientific study to demonstrate whether it is true or not. I cannot find amino acid profiles for American vs Argentine beef for comparison either.

A2c38be4c54c91a15071f82f14cac0b3

(12682)

on March 20, 2013
at 09:35 PM

It wouldn't be the first time lustig basically made something up to support his argument.

Medium avatar

(10611)

on March 20, 2013
at 09:46 PM

I hunted around a little more and edited my comments @Mscott. I had something in there about the romance of lean vaqueros on the pampas, which I took out. The Oxford lecture summary sounded like Lustig was indulging in that kind of gusty hyperbole.

3
3327924660b1e2f8f8fc4ca27fedf2b2

(2919)

on March 20, 2013
at 07:41 PM

Obviously.


86c97b2779feab3c330f5e1c5fea7e25

(2312)

on March 20, 2013
at 09:16 PM

Uhhh ya, this is kind of the point of "Eat high quality meats"

0
B36bbab16837fe6d60eb2b5a49a561ed

(314)

on March 20, 2013
at 08:49 PM

It's a step in the right direction, anyway. Definitely an uphill battle for anyone trying to challenge CW.

Medium avatar

(10611)

on March 20, 2013
at 09:32 PM

It's the same step in the same direction, the old Lustig filibuster against sugar in a new place.

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