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Way to Train
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23 Feb 2026
The ins, outs and effects of crash diets
Nutrition

The ins, outs and effects of crash diets

Have you ever tried it: a strict diet where your total calorie intake for the day stays below 1200 kcal? In this blog, you can read the truth behind the so-called crash diets. What is the effect on the body? And what impact does it have for the mind? Losing weight quickly seems tempting, but we shouldn't look a little further than a kilo more and less. Read all the ins and outs of crashing here!

What is a crash diet?

A crash diet is an extremely restrictive diet designed to lose weight quickly in a short period of time, often by significantly reducing calories. These diets promise quick results, but can have serious consequences for your long-term health.

A diet is considered a crash diet when it involves extreme calorie restriction, usually less than 1,200 calories per day, and when it focuses on rapid weight loss over a short period of time, often a few days to a few weeks. Crash diets can also include restrictive dietary principles, such as completely eliminating certain food groups or consuming very few carbohydrates or fats. It is important to note that crash diets usually do not meet the nutritional needs and nutrients needed for the body and therefore often do not work well in the long term. This makes crash diets less sustainable.

What effect does it have on your body?

The word says it all: your body 'crashes' as a result of a crash diet. The low calorie intake or a lack of carbohydrates or fats can have an adverse effect on your body. Including:

Muscle loss: crash diets often focus on calorie restriction without adequate protein, which can lead to loss of muscle mass rather than fat loss

Metabolism: the body adapts to an extremely low calorie intake by slowing down metabolism, which makes it harder to maintain weight after the diet.

Nutritional deficiencies: By limiting food groups and calories, you run the risk of deficiencies in essential nutrients, which can lead to fatigue, weakness, and other health problems.

And what impact does it have mentally?

Following crash diets can take a toll not only on the body but also on the mind, with possible consequences such as:

Mood changes: experiencing constant hunger and depriving yourself of food can lead to mood swings, irritability, and emotional instability.

Obsession with food: crash diets can lead to an obsession with food, where you're constantly busy with what you can and shouldn't eat, which can result in an unhealthy relationship with food.

While crash diets may seem appealing because of the promise of rapid weight loss, recent studies show that the effects on the body and mind can be serious. It is important to strive for a healthy and balanced diet that is sustainable in the long term, instead of opting for quick solutions that can be harmful to your health.

It's time to break the cycle of crash diets and strive for a healthy relationship with food and your body. Remember that healthy weight loss should be gradual and sustainable, and always supervised by a professional.

Don't be tempted by the promises of crash diets. Instead, choose a healthy lifestyle that supports your body and mind in the long term.

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