Maintaining Weight: How to Prevent Unwanted Weight Loss

Älterer Mann mit Appetitlosigkeit vor einer kleinen Mahlzeit. Symbolbild für Gewicht halten, ungewollten Gewichtsverlust und Mangelernährung.

Many people associate nutrition primarily with weight loss. However, at least as important is the opposite: maintaining weight in the long term. Especially in old age, with loss of appetite, after an illness, or during medical treatment, it can be difficult to consume enough energy and protein.

A stable body weight helps maintain muscle mass, strength, and quality of life. The right nutrition can often counteract unwanted weight loss early on.

 

Why is weight maintenance so important?

If the body loses weight over a longer period, it often loses not only fat but also valuable muscle mass. This can affect many areas of daily life.

Possible consequences include:

  • reduced strength and endurance
  • faster fatigue
  • restricted mobility
  • longer recovery time after illnesses or operations
  • higher risk of falls
  • reduced quality of life

The earlier weight loss is addressed, the better muscles and performance can be maintained.

 

Common causes of unintentional weight loss

It is not always due to a diet. Often there are medical or age-related reasons.

These include, for example:

  • loss of appetite
  • older age
  • chronic diseases
  • cancer treatments
  • swallowing difficulties
  • operations
  • medications
  • psychological stress
  • impaired chewing ability

Many affected individuals consequently eat smaller portions and consume too few calories and too little protein daily.

 

Protein and energy go hand in hand

To maintain weight, the body needs not only sufficient calories but also high-quality protein.

Protein contributes, among other things, to:

  • maintaining muscle mass
  • supporting the body after illnesses
  • maintaining normal bodily functions
  • supporting metabolism

Especially when only small portions are possible, every meal should contain as many nutrients as possible.

 

What helps with loss of appetite?

When appetite is lacking, large meals are often burdensome. Small adjustments in daily life often help.

Proven strategies include:

  • several small meals spread throughout the day
  • energy-rich snacks
  • protein-rich foods
  • calorie-rich beverages
  • foods with high nutrient density

This way, daily energy intake can be increased without having to eat large portions.

 

Suitable products for weight maintenance

When a normal diet is not sufficient, specially developed products can be a valuable supplement.

Adozan Kilo+

Adozan Kilo+ is central to addressing unintentional weight loss. It combines high energy with high-quality protein and is particularly suitable for loss of appetite or increased energy requirements. Due to its high nutrient density, even a small portion provides many calories.

Adozan Vital+

Those who eat less often also consume fewer vitamins and minerals. Adozan Vital+ supplements the diet with important micronutrients and high-quality protein.

Adozan Chocolate+

A small snack can help increase daily calorie intake. Adozan Chocolate+ is ideal as an energy-rich snack between meals.

Adozan Proffee

Many people drink coffee daily. With Adozan Proffee, it can be easily supplemented with high-quality protein, thus increasing daily protein intake.

 

Nutrition for unintentional weight loss

A balanced diet should be as varied as possible and provide sufficient energy and protein.

Particularly suitable are:

  • dairy products
  • eggs
  • fish
  • meat
  • legumes
  • nuts
  • high-quality protein products

If needs cannot be met through normal meals, supplementary products can be useful.

 

Conclusion

A stable body weight is an important component of health. Especially with loss of appetite, in old age, or during an illness, it is important to ensure sufficient intake of energy and protein early on.

With an adapted diet and suitable products, further weight loss can often be effectively counteracted.

You can find suitable products for unintentional weight loss in our category Unintentional Weight Loss.

 

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Frequently Asked Questions

How can I maintain my weight long-term?

A balanced diet with sufficient energy and high-quality protein helps maintain muscle mass and body weight in the long term. Regular meals and small snacks can also provide support.

What helps with loss of appetite?

Several small meals spread throughout the day, energy-rich foods, and protein-rich snacks can help meet daily needs more effectively.

When are supplementary products useful?

If not enough energy or protein can be obtained through normal nutrition, specially developed products can be a valuable supplement.

Which products are suitable for unintentional weight loss?

Products with high energy and protein density like Kilo+ can help meet daily needs more easily. Depending on the situation, Vital+, Chocolate+ or Proffee can also be useful.

 

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Scientific Sources

Swiss Society for the Study of Morbid Obesity and Metabolic Disorders (SMOB)
https://www.smob.ch

Swiss Society for Nutrition (SGE)
https://www.sge-ssn.ch

University Hospital Zurich
https://www.usz.ch

Inselspital Bern
https://www.insel.ch

ESPEN – European Society for Clinical Nutrition and Metabolism
https://www.espen.org

 

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Published: 03.07.2026
Last updated: 03.07.2026
Author: Christiane Michaela Wogrin

 

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Author

This article was written by Christiane Michaela Wogrin, founder and managing director of saluvivo GmbH. She specializes in medical nutrition, protein supply, and supporting people after bariatric surgery and in special nutritional situations.

You can find out more about Christiane Michaela Wogrin and the philosophy of saluvivo on our About Us page.