For decades, fat and cholesterol were enemies. Our mother told us this – the food pyramid, our doctors, and most of the research there.
Most experts agree that it all started with the framingham heart study. It launched in 1948, trying to determine the highest risk factors for heart disease by looking at the health and habits of 5,209 adults living in framingham, Massachusetts. Now the study is looking into third-generation residents, and the first reaction of the findings has some drawbacks. The high levels of fat and cholesterol in the diet increased the risk of heart disease.
Dr Susan Kleiner, a sports nutrition consultant, said: “this seems to be a simple assumption that the more fat and cholesterol you eat, the more fat you get, the higher your blood cholesterol level. And the author of the power diet. And all the other studies of the ’70s and’ 80s and ’90s seem to agree. So the egg white omelette turned into something, and each brand of fries and ice cream came out with low-fat and fat-free versions. Everyone seems to be following a low-fat, low-cholesterol diet.
The truth about fat and cholesterol
“But the assumption is that weight gain and heart disease oversimplify,” Kleiner said, noting that cholesterol in the diet has little effect on blood cholesterol levels. After all, in 2003, a study published in the British journal of nutrition found that people who ate saturated fat instead of saturated fat lost weight without lowering calories. The 2015 harvard meta-analysis concluded that the long-term weight loss of a low-fat diet was not successful. And a 2014 meta-analysis of 512,420 people concluded that eating saturated fat may not increase the risk of heart disease. Experts are still debating the findings, but this proves that the old “don’t eat” slogan is definitely changing. Cardiologist Dr Mike Fenster said: “fat shows incredible diversity of biochemical and physiological effects.” The calorie fallacy: why the modern western diet is killing us and how to stop it. “Without them, life is impossible, but certain types of consumption is the prerequisite of continue to exist, but because of the past to make our views about now become bright, so they often demonized, simply as the cause of weight gain, because they are one of nature’s most powerful fuel”.
In a 2015 study in the American heart journal, eating three eggs a day had no adverse effect on people who had been diagnosed with coronary artery disease. Study author Yale – griffin prevention research center director Dr David Katz, points out that in the previous study, egg consumption per day does not for healthy adults, or high cholesterol levels but without a heart for any damage. At the same time, cutting egg yolks from our diet in the name of health leads to a lack of choline in American adults, which is necessary to promote energy metabolism and cell health. This year, the dietary guidelines advisory committee even suggested abandoning previous recommendations that americans reduce their cholesterol intake.
In fact, the body can’t absorb most of the cholesterol, says Dr. Alexandra Sowa, a medical clinical lecturer at weill Cornell medical college in New York. This means that most of the cholesterol in your body, about three-quarters, is produced by the liver. Why? Because your body needs cholesterol to form cell membranes and vitamins, she says. When your liver produces too much cholesterol, it increases your blood cholesterol levels and your risk of heart disease. This is usually due to genetics, or, now researchers are beginning to suspect that too much refined carbohydrates and sugars are eaten. Vitamins, she said. When your liver produces too much cholesterol, it increases your blood cholesterol levels and your risk of heart disease. This is usually due to genetics, or, now researchers are beginning to suspect that too much refined carbohydrates and sugars are eaten.
The real reason is that we are healthier and less healthy than before
Since experts first started focusing on fat and cholesterol in the late 1970s, more americans have adopted low-fat, low-cholesterol diets. Dr. Donald k. Layman, professor of food science and human nutrition at the university of Illinois at the university of Illinois, said americans are still fatter than ever. According to the centers for disease control and prevention, more than a third of American adults are obese, and heart disease is now the leading cause of death.
One reason is that people don’t replace their fat with fruits and vegetables. Epidemiologists Deirdre Tobias, ScD is the lead author of the 2015 harvard meta-analysis, they use a refined and simple carbs – white bread, white pasta, sugary cereals, snack foods rich in carbohydrates, and tons and tons of sugar instead of them. A low-fat diet doesn’t have much effect on weight loss. Many of these processed, packaged low-fat or fat-free foods actually contain more carbohydrates and sugars than full-fat foods. After all, when food manufacturers remove fat from food, they have to replace it with something to prevent it from tasting like cardboard.
However, eating too much refined carbohydrates causes the body to release insulin, which increases the level of fat and cholesterol in the blood, in addition to increasing the risk of weight gain, Layman said.
Want to lose weight and protect your heart? What are you eating
Although experts generally believe that (at least for now), best from plants and fatty fish such as unsaturated resources gain a lot of fat, but the “good” and “bad” fat is blurred the distinction between. (however, trans fats from processed foods are still bad news.)
Don’t hang on to “perfect” macronutrients or eat carbs or fat daily, as long as you watch what you eat, experts warn. “If you want refined processed foods, you can eat a very unhealthy diet of low-fat or low-carb diets,” Tobias says. Fenster recommends avoiding what he calls “the apocalypse of the four pups of modern diets” : p repackaged, p rewritten, p rocessed and (artificial) p reserved for food. Instead, focus on the whole unprocessed food, whether that means whole grains, bananas, avocados or eggs, and you’ll do a good job for your waistline and your heart.