5 doctors weighed in:

What are trans fats?

5 doctors weighed in
Dr. Robert Kwok
Pediatrics
2 doctors agree

In brief: Transformed veg. oil

Trans fat is what one gets by adding hydrogen to vegetable oil.
The trans fat is more solid, less "oily", and makes junk food more stable for a longer time. Trans fat is bad because it raises a person's bad cholesterol, and lowers his good cholesterol, so it blocks up arteries worse than saturated fats do. Food labels that say "0 grams" trans fat mean "less than half a gram", not necessarily zero!

In brief: Transformed veg. oil

Trans fat is what one gets by adding hydrogen to vegetable oil.
The trans fat is more solid, less "oily", and makes junk food more stable for a longer time. Trans fat is bad because it raises a person's bad cholesterol, and lowers his good cholesterol, so it blocks up arteries worse than saturated fats do. Food labels that say "0 grams" trans fat mean "less than half a gram", not necessarily zero!
Dr. Robert Kwok
Dr. Robert Kwok
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1 comment
Dr. Milton Alvis Jr
Please be aware that cholesterol is a building block of ALL animal (Not plant) cell membranes, is produced by all animal cells (necessary for cell existence, flexibility & ability to move) & is NOT unhealthy. The correct issue is Lipoproteins, NOT cholesterol. Cholesterol, an internally produced fat, was promoted because (though misleading) was cheaper to measure & sort of works if EXTREMELY HIGH.
Dr. Brian Nguyen
Obstetrics & Gynecology

In brief: Bad for you

Meats have some transfats, but most are manmade.
Transfats are made by hydrogenating oils, which turns them into solids (shortening). Transfats are used in processed foods b/c they last longer on shelf that way -- cookies/pie crusts/chips/popcorn/donuts/creamer/margarine. They raise LDL (bad) and lower HDL (good) cholesterol, which leads to heart disease. Saturated fats are just as bad!

In brief: Bad for you

Meats have some transfats, but most are manmade.
Transfats are made by hydrogenating oils, which turns them into solids (shortening). Transfats are used in processed foods b/c they last longer on shelf that way -- cookies/pie crusts/chips/popcorn/donuts/creamer/margarine. They raise LDL (bad) and lower HDL (good) cholesterol, which leads to heart disease. Saturated fats are just as bad!
Dr. Brian Nguyen
Dr. Brian Nguyen
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1 comment
Dr. Milton Alvis Jr
Keep in mind: LDL, low density lipoproteins, & HDL, high density lipoproteins are NOT cholesterol but complex protein particles which transport all non-water soluble molecules (lipids in medical jargon) around the body in water outside cells. A single LDL particle contains >100 proteins in outer water soluble shell & carries 3,000-6,000 lipid molecules within; a widely varying % are cholesterol.
Dr. Milton Alvis Jr
Preventive Medicine

In brief: CarbonChemistryLinks

The vast majority of c-c bonds: all fats: single.
If c-c double bonds (unsaturated) are present ; converted to single bonds, aka saturated (no room for more hydrogen), the final linkage may be cis- or trans-; lookup google images of: "cis-fat vs. Trans-fat" all living cells do cis- under enzymatic control; industrial hydrogenation lacking control: ½ cis, ½ trans; trans-bonds foreign to our enzymes.

In brief: CarbonChemistryLinks

The vast majority of c-c bonds: all fats: single.
If c-c double bonds (unsaturated) are present ; converted to single bonds, aka saturated (no room for more hydrogen), the final linkage may be cis- or trans-; lookup google images of: "cis-fat vs. Trans-fat" all living cells do cis- under enzymatic control; industrial hydrogenation lacking control: ½ cis, ½ trans; trans-bonds foreign to our enzymes.
Dr. Milton Alvis Jr
Dr. Milton Alvis Jr
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2 comments
Dr. Milton Alvis Jr
How have industrial food processors managed to keep producing/selling processed foods nearly as unhealthy as previously yet state their products contain no trans-fats? By switching to slightly more expensive enzymatically controlled hydrogenation processes. While this eliminates trans-fats, producing just cis-fats (within US federal legal & lobbied definitions), does this mean all healthy? No.
Dr. Milton Alvis Jr
What has driven all this confusion about fats & health? Ancel Keys "6 country trial", look up "Big Fat Lies" video, promotion of his theory by the AHA, George "McGovern's Report" combined with the food processing/sales business for decades. For wisdom, study: Gary Taubes, Peter Attia, Robert Lustig, NUSI.org, Paleo, "The Men Who Made Us Fat" at: http://www.youtube.com/watch?v=iE-H__aIEFE, etc.
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