Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A chocolate cookie a day puts 20 lbs on an energetically-balanced kid in four years

11.09.2007
After summer holidays, miracle-diet adherents stick to these diets to lose the weight gained in the last months in record time. Gyms also become overcrowded with people making a final sprint of sacrifice whose results do not exactly match previous expectations and with few benefits for health.

In the field of nutrition, miracles do not exist: in the same way we gain weight as years pass by, weight loss should be equally progressive, states Professor Emilio Martínez de Victoria Muñoz, Head of the Institute of Nutrition and Food Technology [http://www.ugr.es/~winyta/] at the University of Granada [http://www.ugr.es] (Universidad de Granada) in Spain.

Energy balance

It becomes clear that the energy needed by the body to carry out its functions comes essentially from food. Nevertheless, a whole range of hormonal and nervous mechanisms take part in body weight regulation, which makes such process a bit more complex.

When the amount of consumed calories is similar to that of calories used during the day, the energy balance is kept stable and, therefore, weight is kept constant. However, when consumed calories exceed used calories this balance is disturbed and weight is gained, as excess calories are stored as fat in the body. As an example, Professor Martínez de Victoria points out that an energetically-balanced girl who is given a chocolate cookie a day during four years will gain 20 lbs (approximately 9 kg) in that time.

Easy lost, easy back

The researcher affirms that miracle diets are useless to get a stable negative energy balance. There are no scientific foundations behind the vast majority of these diets and they usually restrict consumption of certain food groups, which entails nutrient deficiency whose consequences are serious health problems. In addition to this, miracle diets only help to lose weight in the form of glycogen and water – not fat – that being the reason why rapidly lost pounds are immediately recovered.

Among those panacea diets, and absolutely ignoring all medical recommendations on what a healthy diet should be like, consumers will come across the South Beach diet, a revolutionary plan that allows you to eat as much as you wish while assuring that to lose weight you will have to undergo a two-week purifying period based upon the elimination of sugar and simple carbohydrates. Atkins nutritional method is another example: with this diet you can eat unlimited amounts of fats – such as butter – as well as of meat, fish, eggs and dairy products, whilst restricting vegetables and fruit. These are only two of the endless list of miracle diets, in which the Artichoke diet or the Blood Type diet also occupy leading positions.

Keeping weight under control

Prof. Martínez de Victoria insists that the best way to control body weight is to combine a limited food intake with regular physical exercise. In this sense, he states that with a 500 to 700 calorie deficit, depending on body weight, age and physical exercise, a person can gradually lose 6.5 lbs a month, with the guarantee of not recovering double the weight they lost in half the time they lost it.

In the same way, this researcher stresses the fact that a high-fibre diet helps control obesity, as fibre-rich foods facilitate a lower intake because their mastication time is longer and, due to their volume, produce the filling sensation more quickly. Furthermore, fibre speeds intestinal transit time while slowing food absorption.

All these data have been recently presented in the University of Granada’s [http://www.ugr.es]summer course Healthy Food and Physical Activity (Alimentación Saludable y Actividad Física), organised by the UGR’s [http://www.ugr.es] Centro Mediterráneo [http://www.ugr.es/~cm/].

Antonio Marín Ruiz | alfa
Further information:
http://prensa.ugr.es/prensa/research/index.php

More articles from Health and Medicine:

nachricht Speed data for the brain’s navigation system
06.12.2016 | Deutsches Zentrum für Neurodegenerative Erkrankungen e.V. (DZNE)

nachricht Study suggests possible new target for treating and preventing Alzheimer's
02.12.2016 | Oregon Health & Science University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Predicting unpredictability: Information theory offers new way to read ice cores

07.12.2016 | Earth Sciences

Sea ice hit record lows in November

07.12.2016 | Earth Sciences

New material could lead to erasable and rewriteable optical chips

07.12.2016 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>