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10 myths about food, long refuted by science

10 myths about food, long refuted by science

Many still try not to eat after six in the afternoon. It seems that if you lie on a full stomach, everything you eat will turn into body fat. But this is just a myth.

The nutritionists talked about such common misconceptions.

1. Do not use wooden boards to cut meat.

It is believed that when using a knife on the wooden board there will be scratches and microscopic furrows in which the smallest particles of raw meat and bacteria will remain. It would seem better to use plastic boards that are easy to clean and disinfect.

However, the research refutes this belief. Dean O. Cliver, from the University of California, discovered that plastic boards do not offer a significant antibacterial advantage.

Even if the bacteria are placed especially on a wooden board, the natural properties of the tree will not allow them to multiply. All the bacteria in the cracks of the wooden surface die gradually.

Kliver tested tables of ten types of wood and four types of plastic. The result was unexpected.

If you cut a work surface from a plastic and wooden board with a sharp knife on which the bacteria fell and then manually cleaned, you can find more bacteria in the plastic than in the tree.

Therefore, no matter what cutting board you use, take care of it and disinfect the work surface. And do not buy tables that promise a special bactericidal coating.

This is just a marketing gimmick.

2. If you add salt to the water, it will boil faster.

10 myths about food, long refuted by science

Not only housewives, but also professional chefs are still talking about this, but anyone who knows chemistry will tell you that the amount of salt we add when cooking does not affect the boiling point of water at all.

Yes, strictly speaking, salt changes the boiling point of water, but everything depends on its concentration. To greatly accelerate the boiling of the water, we would have to add and completely dissolve so much table salt that the resulting dish would eventually become inedible.

The amount of salt that we usually add when we cook changes the boiling point of the water in the best of cases in only a few tenths of a degree.

Without fat, the human body will not be able to absorb most of the nutrients necessary for survival. In addition, the lack of fat leads to different disorders in the nervous system.

The right amounts of correct fats only help with weight loss and reduce cholesterol.

Look at the composition of the products in the store and think about the purchase, and do not look for non-fat products in the machine, because you have heard somewhere that they are more useful. Most fat-free foods contain little “good” and much “bad” fat, as well as a large amount of additives and substitutes (for example, sugar and sodium).

Try to include monounsaturated fats (avocados, pecans, almonds, peanuts) and omega-3 fatty acids (chia seeds, seaweed, salmon) in your diet.

10 myths about food, long refuted by science

Many people believe that there is nothing better than dairy products for health and strengthening of bones. Yes, dairy products contain vitamin D and calcium, but it is also found in dark green leafy vegetables (kale, spinach).

But bone strength does not just depend on calcium and vitamin D. Vitamin K is equally important (found in leafy green vegetables, not dairy products) and magnesium (in almonds, cashews, oats, potatoes, but not milk).

If you worry about your bones, do not limit yourself to milk. Include in your diet and other sources of calcium: leafy cabbage, leaf mustard, curly cabbage, bok choy cabbage.

The water recently announced as a cure for all evils. Of course, it is necessary for the normal functioning of the body, but eight glasses a day will not relieve you of all problems.

There is not a universal amount of water that everyone should drink. You do not have to limit yourself to a certain amount of water a day, just take it whenever you feel like it. Food is an individual matter.

Sometimes the body may need less and sometimes more than the average water rate.

And do not forget that the body gets water from any liquid, fruit and vegetables. A sign of sufficient water content in the body: the clear color of the urine.

6. Foods high in sodium have a salty taste, so salty foods should be avoided.

10 myths about food, long refuted by science

This is especially important for those who observe the amount of salt and sodium consumed due to the risk of developing hypertension or diabetes. The difficulty is that not all foods rich in sodium have a salty taste.

It’s a lot in different sauces, cakes, convenience foods and fast food.

Therefore, do not forget to check the composition of the products in the store and find out what their favorite dishes are in cafes and restaurants (many people have this information on the site).

The level of cholesterol in the blood is affected by saturated fats and trans fats. Eggs contain very little saturated fat (approximately 1.5 g of fat in a large egg), but there is no trans fat.

Scientists believe that of the amount of cholesterol in the yolk, only a small part enters the blood.

The complete exclusion of eggs from the diet due to fear of cholesterol will not give you anything, but it can only cause harm. By abstaining from eggs, you are deprived of 13 vitamins and minerals, as well as a tasty breakfast.

8. Aluminum foil and glassware are associated with Alzheimer’s disease.

10 myths about food, long refuted by science

This myth prevailed especially in the United States in the 80s and 90s, and although it is not as popular now, some still believe in it. This is due to the fact that in the course of the studies carried out in the years 1960-1970, an elevated level of aluminum was found in the brain of Alzheimer’s patients.

After that, many began to avoid aluminum cookware and even aluminum foil.

However, since then many investigations have been carried out. Now scientists are confident that all the aluminum that enters the body is processed by the kidneys, is excreted in the urine and is not connected in any way. with Alzheimer’s disease.

9. The crust in the fried meat helps keep it juicier

In the nineteenth century, the German chemist Justus von Liebig was one of the first to suggest that if you cook meat at a very high temperature, the resulting crust will not let the liquid enter the interior, so the meat will be juicier.

Only during his experiment, Liebig compared the amount of liquid and nutrients in one serving of meat, boiled slowly in water, and in another, roasted on a very hot surface. Naturally, the fried meat was more succulent, because from the first piece everything went to boil.

The popular author Harold McGee (Harold McGee) in his book On Food and Cooking (About Food and Cooking) described an experiment that compared meat with and without the bark. Both pieces were prepared in the same way.

It turned out that the meat fried in the crust is less juicy than the meat without the crust.

10 myths about food, long refuted by science

Much more important is what you eat during the day. The food that is consumed after six in the afternoon does not magically become fat.

This advice “helps” you lose weight just because you reduce the total amount of calories per day.

This myth appeared due to a misinterpretation of the work of the digestive system. It seems to people that if you sleep on a full stomach, the deceleration of the metabolic processes in the body will lead to the fact that all the food consumed will become body fat.

This statement is only partially true, and even then it is not for everyone.

Although the metabolism during sleep decreases, it does not stop completely. The food in the stomach is still digested.

Of course, you will not lose weight if you eat poorly, do not get up off the table all day and do not play sports. It really does not matter if you have dinner at five or seven.

If you go to bed late and have dinner at five or six in the afternoon because you want to lose weight, this will not help. You simply skip a meal, which is quite dangerous if you are trying to lose weight.

The body will begin to fast. During the next meal, hormones will be released, which will cause you to eat more than usual.

As a result, you only hurt yourself.

Listen to common sense: if any advice or a new magical diet is too good to be true, or suitable for all without exception, it is likely that this is just another myth. Such information is better to be skeptical and try to verify it in reliable sources.

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