The Science Of Obesity: Fats & Cholesterol
For years we heard that a low-fat, low-cholesterol vitamin would keep us healthy and assist us lose weight.
And many of us jumped on the bandwagon, getting rid of fat and high-cholesterol foods from our diets. Well, unfortunately, we were doing it all wrong.
Instead of eliminating fat completely, we will have to have been eliminating the “bad fats,” the fat associated with obesity and center disease and eating the “good fats”, the fat that actually help support blood ldl ldl ldl ldl ldl ldl ldl ldl ldl ldl ldl ldl cholesterol levels.
Before we examine the good fat and bad fats, let’s talk about cholesterol.
Cholesterol – it is been ingrained into our brains that cholesterol causes heart illness and that we should limit our intake of foods that include it, but dietary cholesterol is different than blood cholesterol.
Cholesterol comes from two places?first, from meals such as meat, eggs, and seafood, and second, from our frame. 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 frame. Our body needs cholesterol to lend a hand 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 just right. A build-up of cholesterol in our arteries could prevent blood from getting to parts of our center.
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 quantity of cholesterol in our meals is not strongly linked to our blood cholesterol levels.
It’s the types of fat you eat that affect your blood cholesterol levels.
Bad fat
There are two fat that you should limit your intake of?saturated and trans fat.
Saturated fat
Saturated fats are mostly animal fats. You in finding them in meat, whole-milk products, poultry skin, and egg yolks. Coconut oil also has a prime amount of saturated fat. Saturated fats raise both the excellent and bad blood cholesterol.
Trans Fats
Trans fats are produced through hydrogenation?heating oils in the presence of oxygen. Many products include trans fats as a result of the fats help them maintain a longer shelf life. Margarine also accommodates a high quantity of trans fats.
Trans fats are especially dangerous because they lower the just right cholesterol, HDL and raise the bad cholesterol, LDL. Unfortunately, most merchandise do not tell you how much trans fat it contains, but you can to find out if it’s in a product by looking at the ingredient list.
If the ingredients include hydrogenated or partially-hydrogenated oils, then it contains trans fats. thankfully in 2006, manufacturers will be required to list the amount of trans fat in their merchandise 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 discovered in sunflower, corn, and soybean oils. These oils contain Omega-6, an essential fatty acid. However, such a lot people get enough Omega-6 in their nutrition and instead want 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.
