Monday, January 5, 2009

Day 280- Nutrition Bite

Trans fatty acids v. Saturated fatty acids
"Trans fatty acids have similar properties to saturated fatty acids when used in baked goods, but the assertion that trans fatty acids are like saturated fatty acid is not correct in biological systems. A listing of the biological effects of saturated fatty acids in the diet versus the biological effects of trans fatty acids in the diet is in actuality a listing of the good (saturated) versus the not-so-good (trans).

Note that: (1) saturated fatty acids raise HDL, the so-called good cholesterol, whereas the trans fatty acids lower HDL cholesterol; (2) saturated fatty acids lower the blood levels of the atherogenic lipoprotein (a), whereas trans fatty acids raise the blood levels of Lp(a); (3) saturated fatty acids conserve the good omega-3 fatty acids whereas trans fatty acids cause the tissues to lose the good omega-3 fatty acids; (4) saturated fatty acids do not inhibit insulin binding whereas trans fatty acids do inhibit insulin binding; (5) saturated fatty acids are the normal fatty acids made by the body and they do not interfere with enzyme functions such as the delta-6-desaturase, whereas trans fatty acids are not made by the body and they interfere with many enzyme functions such as delta-6-desaturase; (6) some saturated fatty acids are used by the body to fight viruses, bacteria and protozoa and they support the immune system whereas trans fatty acids interfere with the function of the immune system; (7) stearic acid, a naturally saturated fatty acid, is the preferred food for the heart whereas trans fatty acids replace these saturated fatty acids in the cell membrane, thus depriving the heart of its optimum energy source; (8) saturated fatty acids are needed for proper modeling of calcium in the bones whereas trans fatty acids cause softening of the bones; and (9) saturated fatty acids from animal sources are carriers for vital fat-soluble vitamins whereas factory-produced trans fatty acids are devoid of these important nutrients."

~By Mary G. Enig, Ph.D.

Sugar Preacher's Experience

I had a discussion with a friend yesterday about saturated versus trans fatty acids. He thinks the best oil to counsume is coconut oil. I don't agree because it has 92% saturated fat. I always thought saturated and trans fatty acids function similar in the body. However, I started to research and found out otherwise.

1 comment:

Val said...

I learned some things from reading your saturated v. trans fat "nutri-bite". Yet I think you and us all need to learn more about the lipids or fats in our diets (or 'should-be'in our diet). I thank you for mentioning that your research on the internet showed that trans-fats prevent our bodies from absorbing our EFA (essential fatty acids) Omega-3s. Great reminder to eat healthy, even cook with coconut oil. By the way, Coco-oil is not a trans fatty oil, yet is saturated (saturated not being the culprit). Great info, perhaps it should have been called trans-fats (true culprits) v. EFAs! Heck, maybe someone should start a blog called transfatshun.com.