Nutritional advice

“Many tips we can read have no scientific basis”

Abel Mariné – Professor emèrit de Nutrició i Bromatologia
The concern for food causes information and advice to be sought, which come from diverse sources of solvency. The sanitary and agrarian administrations give, but they are not always enough. It is not a nutritional advice the campaign of the Barcelona City Council so that on Monday no meat is eaten, and the declaration of the city “friendly to the vegan and vegetarian culture”. Forget that strict vegetarianism carries risks of deficits in some nutrients. If it is to recommend that you do not eat too much meat, this is good advice, but, put to propose days “without”, perhaps it would be more appropriate one day without industrial pastry (and artisan) or goodies, without refreshing drinks with sugar , Or without alcohol.

In the framework of the Predimed (Prevention with Mediterranean Diet) study, the Nutrition Unit of the Rovira y Virgili University, led by Professor Jordi Salas, has published a study on the relationship of red meat and metabolic syndrome, where it is verified That the problem is excessive consumption. He points out that meat is a source of protein, iron and vitamin B12 (not found in any vegetable), and that the consumption of red and processed meats, with a frequency of up to one or two servings a week, is advisable.

Claudi Mans, emeritus professor of chemical engineering at the University of Barcelona, ​​in his recent book The Chemistry of Every Day. As chemistry helps us to understand cooking and many other things, which I recommend to you, and where it treats with wit and rigor myths about food, it says that “unfortunately, many of the comments about food and nutrition circulating on the net are not Scientifically contrasted, in many cases are pseudoscientific or esoteric and it is very difficult to fight from rationality. ” Not just on the net. This April, in the British Medical Journal, Navjoyt Ladha states that we are not only “what we eat” but also “what we read”, and the advice of many writings on the subject have no scientific basis. We can also say, many times, the radio or television. The responsibility is not of the environment, but of those who, with good faith, spread erroneous messages, and of the people who follow them without rationally assessing their consistency. Also of this opinion Joe Schwarcz, author of another recent book on these questions, Monkeys, myths and molecules. Our chemistry of each day, when titled one of its chapters “In the councils about foods the lack sometimes half an hour of oven”. The accumulation of “singular” advice and theories on health and food are not a recent fact. Schwarcz evokes a phrase of the American writer Mark Twain (1835-1910), as a probable reaction to the plethora of diets that were stylized in the United States of his time: “Part of the secret of success in life lies in eating what each one “It’s not the best of advice, because food should be rational, balanced, varied and sufficient, and there are many ways to ‘do it’, but not all that we do Proposed respond to these conditions.

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