DrHoon.Net - General Medical, Surgery, and Cardiovascular Information Online!
 

Google
 

 

The Science of Obesity: Fats & Cholesterol


For years we heard that a low-fat, low-cholesterol diet would keep us healthy and help us lose weight. And many of us jumped on the bandwagon, eliminating fat and high-cholesterol foods from our diets. Well, unfortunately, we were doing it all wrong.

Instead of eliminating fat completely, we should have been eliminating the "bad fats," the fats associated with obesity and heart disease and eating the "good fats," the fats that actually help improve blood cholesterol levels. Before we examine the good fats and bad fats, let's talk about cholesterol.

Cholesterol - It's been ingrained into our brains that cholesterol causes heart disease and that we should limit our intake of foods that contain it, but dietary cholesterol is different than blood cholesterol. Cholesterol comes from two places-first, from food such as meat, eggs, and seafood, and second, from our body. Our liver makes this waxy substance and links it to carrier proteins called lipoproteins. These lipoproteins dissolve the cholesterol in blood and carry it to all parts of your body. Our body needs cholesterol to help form cell membranes, some hormones, and Vitamin D.

You may have heard of "good" and "bad" cholesterol. Well, high-density lipoproteins (HDL) carry cholesterol from the blood to the liver. The liver processes the cholesterol for elimination from the body. If there's HDL in the blood, then less cholesterol will be deposited in the coronary arteries. That's why it's called "good" cholesterol.

Low-density lipoproteins (LDL), carry cholesterol from the liver to the rest of the body. When there is too much in the body, it is deposited in the coronary arteries. This is not good. A build-up of cholesterol in our arteries could prevent blood from getting to parts of our heart. That means that our heart won't get the oxygen and nutrients it needs, which could result in heart attack, stroke, or sudden death. So, if your LDL is higher than your HDL, you're at a greater risk for developing heart disease.

It may come as a surprise, but recent studies have shown that the amount of cholesterol in our food is not strongly linked to our blood cholesterol levels. It's the types of fats you eat that affect your blood cholesterol levels.

Bad Fats - There are two fats that you should limit your intake of-saturated and trans fats.

Saturated Fats - Saturated fats are mostly animal fats. You find them in meat, whole-milk products, poultry skin, and egg yolks. Coconut oil also has a high amount of saturated fat. Saturated fats raise both the good and bad blood cholesterol.

Trans Fats - Trans fats are produced through hydrogenation-heating oils in the presence of oxygen. Many products contain trans fats because the fats help them maintain a longer shelf life. Margarine also contains a high amount of trans fats. Trans fats are especially dangerous because they lower the good cholesterol, HDL and raise the bad cholesterol, LDL. Unfortunately, most products do not tell you how much trans fat it contains, but you can find out if it's in a product by looking at the ingredient list. If the ingredients contain hydrogenated or partially-hydrogenated oils, then it contains trans fats. Fortunately in 2006, manufacturers will be required to list the amount of trans fat in their products on the nutrition labels, so it will be easier for you to find.

Good Fats - Some fats actually improve cholesterol levels.

Polyunsaturated Fats - Polyunsaturated fats are found in sunflower, corn, and soybean oils. These oils contain Omega-6, an essential fatty acid. However, most people get enough Omega-6 in their diet and instead need more Omega-3. Omega-3 is a fatty acid found in fish and walnuts.

Monounsaturated Fats - Monounsaturated fats are found in canola, peanut, and olive oils.

Both types of unsaturated fats decrease the bad cholesterol, LDL and increase the good cholesterol, HDL.

Now, just because the unsaturated fats improve your blood cholesterol levels, you don't have the go-ahead to eat all of the olive oil, butter and nuts you want. Fat of any kind does contain calories, and if you're trying to lose weight, eat fat in moderation, and stay away from saturated fats.

Arnel Ricafranca
Fitness Expert/Personal trainer
Founder of Fitness VIP
Online personal fitness trainer
http://www.fitness-vip.com

If you would like additional support and coaching along the way - I strongly suggest you take a peak at my online "member's only" site at http://www.fitnessgenerator.com/fitness-vip - as what we have for you there can definitely help you make progress fast.

Sign up for my fitness newsletter and receive my five special reports ($50 value).

SPECIAL REPORT #1:
6 Keys To Getting Maximum Results In Minimum Time With Your Home Exercise Equipment

SPECIAL REPORT #2:
The 8 Keys to Golf Fitness Success

SPECIAL REPORT #3:
How to Build The Perfect Athlete For Any Sport: The 6 Secrets of Successful Sport-Specific Conditioning

SPECIAL REPORT #4:
Solving the Supplement Mystery: Is There A Magic Pill Out There For You?

SPECIAL REPORT #5:
16 Tips For Looking And Feeling Better Than You Have In Years:

Get it now at http://www.fitness-vip.com

Yoga Videos

   


MORE RESOURCES:

MLive.com

Prana Yoga now at Old World Village mall
MLive.com, MI - 16 hours ago
by Julia Zaher | Grand Blanc News Julia Zaher | Grand Blanc NewsJennifer Whipple, owner of Prana Yoga in Grand Blanc, demonstrates standing yoga poses with ...


SFStation.com

Restorative Yoga Therapy and Massage
SFStation.com, CA - 9 hours ago
By Nirmala Nataraj (Oct 10, 2008 ) Combining your trips to your yoga studio and massage therapist seems like the ideal kind of fusion. ...


Yoga for Parkinson’s
Packet Online, NJ - 13 hours ago
”It’s strengthening, energizing and calming,” instructor Carolyn Stephens says of yoga’s benefits. Ms. Stephens will lead the “Yoga for Parkinson’s” class ...


The Gossip Girls

Halle Berry: Yoga Sexy
The Gossip Girls - 7 hours ago
Continuing to work on her post-baby body, Halle Berry was spotted out for a trip to the yoga studio in Los Angeles on Friday (October 10). ...


Kids yoga classes
YourHub.com, CO - 11 hours ago
Edgewater Parks & Recreation is now offering kids' yoga classes! Yoga for kids emphasizes movement and play. We keep it simple. More than learning the poses ...


Financial crisis "turns people onto yoga"
Totally Fitness Health and Fitness news, UK - 14 hours ago
Experts have suggested that the current economic problems throughout the world are leading more and more people to try yoga. As well as improving fitness ...
Kettlebells is "yoga with weights" Totally Fitness Health and Fitness news
all 2 news articles


Wii Fit yoga mat spotted in Target
gamesdog.co.uk, UK - 15 hours ago
If you enjoy the yoga element of Wii Fit, this Wii Fit Yoga Mat has been spied out in the States. Target is selling the mat for $30 (£17), but from what we ...


New class combines yoga and hip-hop
Calgary Herald,  Canada - Oct 9, 2008
I am not a yoga guy, but it didn't matter. I was old enough to be the father of everyone in the room, but that didn't matter. And my faltering attempts at ...


Glide Recordings Launches "Yoga on the Dance Floor and Sanskrit ...
PR Web (press release), WA - Oct 10, 2008
Brooklyn, NY (PRWEB) October 10, 2008 -- France's house music DJ and producer Tom Glide and New York City singer and writer, Ekayani are premiering "Yoga on ...


Jacksonville News

Yoga: Perfect way to get in shape
Jacksonville News, AL - Oct 9, 2008
Those seeking decreased stress and increased physical wellness can easily find both with Body Kneads’ weekly Yoga classes. Yoga instructor Gina Mabrey ...

Yoga - Google News

home | site map
© 2006