Which diet pills really work

Diet Pills That Really Help? Doesn't exist, say experts!

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Written by Till von Bracht • Medical editor

Our content is based on well-founded scientific sources that reflect the currently recognized state of medical knowledge. We work closely with medical experts.

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Lose weight without exertion: Because that sounds so nice, many people rely on diet pills. Stiftung Warentest took a close look at over-the-counter and prescription-only weight loss products. The result: most of them do not help, with others who want to lose weight, for example with a racing heart, pay too high a price for the slim waist. No remedy is recommended without reservation.

Stars from the USA can only smile tiredly about it: In order to shed the pounds as quickly as possible, some of the Hollywood stars rely on extreme diets and swallow prescription slimming products that, among other things, swell in the stomach and curb the appetite or stop fat absorption.

Diet pills promise real miracles: You simply take two weight loss pills a day and the pounds will melt away all by themselves - without the yo-yo effect, without side effects, without a prescription and without exercise.

Lady Gaga and Co. have shown it - many, especially younger women in the body cult craze are doing it. After all, the stars' diet pills can now be ordered with just a few clicks on the Internet, sometimes at horrendous prices from dubious Asian suppliers.

Health experts warn, however, that there are no diet pills that really work! But not only that: You have to be careful, especially with weight loss pills from the Internet. Many of them contain dangerous illegal substances - some even pose a fatal risk!

That's what Stiftung Warentest says

Stiftung Warentest has tested prescription-free and prescription-only diet pills. According to Stiftung Warentest, none of the six over-the-counter products examined are suitable for weight loss. The agents do not work or their effect has not been proven and / or they lead to significant side effects.

According to Stiftung-Warentest, three of the prescription drugs are suitable with restrictions. Orlistat in a dosage of 120 milligrams, Saxenda and Xenical. The active ingredients are orlistat, which blocks enzymes that break down fats in food. And liraglutide, which lowers blood sugar.

All three remedies are suitable for very overweight people, but only help if the diet is changed at the same time. In addition, their tolerance cannot be assessed in the long term.

Stiftung Warentest generally advises against appetite suppressants with amphetamines. They can lead to restlessness, racing heart and dizziness.

The US health authority FDA also warns against high-risk diet pills from the net: More and more often these preparations, which are designated as purely natural food supplements, are adulterated with dangerous drugs and chemicals - of course, such additives are not declared.

Beware of sibutramine

A few years ago, the active ingredient sibutramine was approved in a single drug that was available only by prescription. This diet pill was prescribed to severely overweight people who were unable to achieve sufficient weight loss through a low-calorie diet and increased physical activity - albeit in a much lower dose than is found in many illegal diet pills today.

Because of the considerable risks, drugs with the active ingredient sibutramine may no longer be sold since January 2010!

After taking sibutramine, it became more common

The number of heart attacks and strokes has also increased after treatment with sibutramine.

2,4-Dinitrophenol (DNP): With explosives against extra pounds?

Some of the illegal "fat burners" offered on the Internet may contain the active ingredient 2,4-dinitrophenol (DNP) - a life-threatening chemical-synthetic additive.

DNP was originally used as a component in explosives - it is still found in wood preservatives and insecticides today. At the beginning of the 19th century it was found that workers who came into contact with DNP lost significant weight. And so the active ingredient came onto the market as a diet pill in the 1930s.

However, there were also considerable side effects here - damage to the liver, kidneys, blood formation, cardiovascular and nervous systems occurred. In 1938, the sale of drugs containing DNP was stopped.

Several people have died in recent years from illegal diet pills containing the active ingredient DNP.

Conclusion diet pills: useful or not?

Appetite suppressants, fat digestion inhibitors or other diet pills that can be found in the pharmacy or drugstore are not a substitute for a change in diet. The effectiveness of over the counter products is mostly scientificNotapproved. The before-and-after pictures in advertising and the "success stories" are largely fake.

Instead of diet pills, Antje Gahl from the German Nutrition Society (DGE) advises a long-term change in eating habits and more exercise. "Eat vegetables and fruit several times a day. Give preference to whole grain products and low-fat meat, fish and dairy products. High-fat foods, sweets and alcohol should only play a very small role in your everyday life. You should also exercise regularly and take your bike or bike more often walk instead of using the car. "

Just get thinner - is that possible? Online information from Stiftung Warentest: www.test.de (as of 2.1.2020)

Slimming products promise a lot - but only help little. Online information from the Federal Office for Consumer Protection and Food Safety: www.bvl.bund.de (Status: 3.1.2017)

Dangerous slimming products. Online information from the consumer advice center in North Rhine-Westphalia: www.verbüberszentrale.de (as of March 10, 2016)

E-commerce: Dangerous slimming products. Online information from the pharmaceutical newspaper. Edition 44/2007: www.pharmazeutische-zeitung.de (as of 2007)

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Last content check:02.08.2020
Last change: 31.07.2020