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10 things about food and health that everyone should know

The book The Smarter Science of Slim simplify perhaps sometimes too, but it has one virtue: It explains things that are most important in the field of nutrition, health and obesity in a clear, concise and accessible for the entire world.And when moving in his reading, which says just looking so logical, one wonders: Why all this is not taught in schools? Do not think any child go through this blog, but unfortunately most adults do not know the slow revolution that is occurring in the paradigms of nutrition. So we will relocate our bit with that, in my opinion, they are ... The 10 things that science has shown about nutrition and that everyone should know! (but did not know where to ask)

 
1 To reach your ideal diet, eat equally vegetables, proteins and fats. Our metabolism is a consequence of the evolution of millions of years in an environment with these three macronutrients, so it is important that all three are present in our diet, so generous, proportionate and balanced. The famous food pyramid that the USDA think in entirely different directions, is completely obsolete today is rejected by all experts and has led us to have a major shortcoming of the three. And the lack or depletion of any of them is negative, so eat them without fear and to feel satisfied. While each body has its peculiarities, a good starting point may be a third of each (% of calories), which is consistent with the idea of ​​a "balanced diet." Incidentally, the fourth element would be water.

2 Avoid syrups or syrup and trans fats. Products that have proven to be more harmful are the fructose or glucose syrups, which are used as additives in countless foods and beverages (eg, this study) and hydrogenated trans fats or artificial. Both were created by the food industry by mere economic interests as both they have been associated with cardiovascular disease, hypertension, obesity, cancer, diabetes and other problems. Run away from them as the devil.

3 To lose weight, rather than quantity, the important thing is choosing the right foods. Although the energy balance is irrefutable (energy entering must be similar to what is spent), our body reacts in complex ways and diverse foods we eat and also processes in many different forms, mainly governed by how they respond hormones to each. Therefore, although the calorie count, the most important is not how much we eat (since we have systems that regulate this quite well if no other problems), but the type and proportion of foods. And, paradoxically, all long-term studies have shown that diets low in calories rather than help reduce obesity, just promoting it, as seen in this chart based on data from a study conducted at Harvard for 12 years and the more than 60,000 women:
Most of the time the malfunction of the systems regulating the amount (which are what push us to want to eat or stop doing), is due to an incorrect choice of food and their ratio (see item 1).

4 Refined carbohydrates are worse than useless. For a kind of normal life, with normal physical activity, with normal or moderately active energy expenditure, sugar and refined carbohydrates, fast absorption or high glycemic index (pasta, rice, cereals, bread, flour, potatoes, etc.) do not provide any benefit, they are not needed at all. Also appear to be primarily responsible for the malfunctioning controller amount mentioned in the previous paragraph, which should be replaced by foods slowly absorbed carbohydrates or low glycemic index (vegetable, vegetables, whole grains of truth, legumes, etc. ) and fruits. And, moreover, studies have proven without a doubt its relationship with obesity, diabetes and cardiovascular disease, something suspicious after observing these graphs with data from USA (development of overweight and the prevalence of diabetes, along with the evolution of the percentage of energy from ingested fats or carbohydrates, source: the Smarter Science of Slim):


5 Fat is not your enemy. Although for decades has been assigned the role of bad guy, there is no evidence that fats are harmful to health, even saturated (except hydrogenated or trans fats discussed above). The relationship between obesity and fat, something we all take for granted, has never been rigorously demonstrated in epidemiological studies (the graphs of the previous section are quite didactic in this sense) and even the most advanced societies have not done more to reduce fat intake over the past years through campaigns and government policies overpriced, obesity has not stopped growing. On the other hand there is a particular type of beneficial fat, natural polyunsaturated fatty acids (omega 3 and 6 known), which have proven effective in reducing the likelihood of cardiovascular disease if eaten in the right proportion.

6. grow handles carbohydrates. The most effective way to accumulate fat is not eating fat, but sugar or refined carbohydrates. By eating the latter and process, resulting glucose molecules diffuse through our blood and if they reach high concentrations (which is almost always), are toxic, so our pancreas produces large amounts of insulin, a hormone that regulates effective and fast storage and transformation to end up as fat cells. As a result of this process, we again feel hungry (the famous cravings). To make matters worse, high insulin levels that block the use of fat as an energy source, making it difficult for our body to use in case of need and pushing us to eat more carbohydrates to regain glucose.


7 Come without fear and plenty of meat and fish. The benefits of eating the right amount of proteins, which should have a significant amount of animal origin are many, as seen, for example, in this study, among many others. In addition to the myriad of nutrients they contain, their satiating effect is spectacular, have a relatively low caloric intake end (because its processing is very complicated and has many phases where they wear the energy they contain) and help our control disc function properly. Not forgetting that are absolutely necessary to build and compose tissues and muscle. The relationship found between eating too much red meat and processed meat (sausages, sausages, etc.) with cancer, has given a bad name to all protein foods, but studies confirm that this risk is compensated not exaggerating smooth consumption red and processed meat, alternating with other types of meat (poultry ...) and eggs, eating more protein from seafood and caring eating the right amount of fiber (vegetables, fruits and vegetables).


8 A high value for total or LDL (bad colestrol) need not necessarily be dangerous. One of the most popular factors pushing people to mistakenly alter your diet are high levels of cholesterol, both total and LDL. But it has long been known that these two indicators are right sometimes and sometimes not, that is, are too simplistic to describe the cardiovascular risk. The scientific community is working for other consensus among the candidates are the relationship between total cholesterol and HDL or good cholesterol (this and many doctors use it), lipoprotein (a), the size of LDL particles, the relationship various indicators including triglycerides (which is greatly raised to eat too much carbohydrate) and glucose etc. Furthermore, it has been shown on numerous occasions that the cholesterol we eat no influence on blood cholesterol levels much less cardiovascular risk, so you can eat eggs without problems. Not even saturated fat, which sometimes increase the rates of LDL or bad cholesterol, it has been clearly relate them to the risk, so there is a deep debate about the effectiveness of their reduction in the diet to lower cholesterol levels.

9 Exercise to improve your health and your life, but alone will not help you lose weight. The positive impact of physical activity affects our whole body and allows us to live longer with much better quality of life. But studies have shown that exercise, by itself, does not lose weight long term. And the kind of healthy exercise, exercise allowing maximum muscle fiber, helps regulate hormones that modulate weight loss and generates muscle mass appears to be a combination eccentric training loads based on interval training and high intensity.


10. not abandon your ideal diet, sáltatela scheduled basis. This last point is perhaps that, for now, still needs more research, since the only thing I've found that supports this study's surprising result. The fact is that some of the recent serious weight loss methods, in order to maintain long-term rules, from time to time recommend skipping all guidelines. Despite these failures, the results are not affected (as seen in the previous study) and diet does not lose effectiveness. Possible explanations for this are several. On the one hand it is believed that an overflowing day all banned every one or two weeks could increase sensitivity to some hormones that help you lose weight, such as leptin. On the other hand, from the psychological point of view, it is known that almost everyone just skipping diets, since the forbidden foods are always a temptation. And then, the breach, the feeling of guilt after binge, often leads to total abandonment. It seems that if the breach is further programmed to help ease the tension of the forbidden, nor does psychologically affect makes us feel guilty, and continued normal person being controlled subsequent days.


And this is where and how to prove?
Scientific references that prove each of these statements are numerous and, in addition to which I have already, could collect dozens of them below. But I preferred to provide only one, because it is easier to read, is recent, and especially relevant because in one way or another touches almost every point and includes links to many other studies. This is the summary of the conclusions of a conference held in 2010 at the University of Copenhagen, led by Walter Willet (Harvard researcher and one of the most prestigious international nutritionists). At this conference together experts from around the world to agree on the state of knowledge of the approaches to reduce the saturated fat in the prevention of vascular diseases. They agreed this document: The role of Reducing intakes of saturated fat in the prevention of cardiovascular disease: where does the evidence stand in 2010 ?. The report is very comprehensive and also the title theme, saturated fats, also speaks of refined carbohydrates, whole grains, cholesterol, the glycemic index and a lot of things that really are worth it. If you defend the English, do not miss it, and if you resist, you can also copy-paste the article into Google Translate.


Updated:
I have compiled what they say the latest research and scientific studies in the book "What the science says diet easy and healthy way." More information at this link.

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