What is a diet shake and how does it work?
If you look into the subject of weight management, sooner or later you will come across the term diet shake. But what exactly is a diet shake? At its core it is a drink in powder form designed as a complete meal replacement. It provides a defined amount of protein, carbohydrates, fats, vitamins and minerals – with a controlled calorie intake at the same time. This lets you replace a meal without fuss and without having to go without important nutrients. In Switzerland such products fall under the Ordinance on Foodstuffs for People with Special Nutritional Needs (VLBE) and have to meet strict legal requirements.
If you would like to approach the start in a structured way, myherbal.ch has suitable programme packs. The Herbalife 21 Day Challenge Complete is an excellent fit for beginners who want to gather their first experience with meal replacement. For more advanced users who are already familiar with shakes and want to step up their routine, the Herbalife 21 Day Challenge Power offers a more comprehensive range of products matched to one another.
How diet shakes work in practice
The basic principle of a diet shake is simple: you replace one or two meals a day with a nutrient-rich shake and eat the remaining meals as usual. As a rule this creates a moderate calorie deficit, which the Swiss Society for Nutrition (SGE) puts at around 300 to 500 kilocalories a day. This deficit is large enough to lose weight in the long term and at the same time small enough not to put the body into a state of deficiency.
Clinical studies, among them research published in the European Journal of Clinical Nutrition, show that formula-based meal replacement programmes can contribute to a body weight reduction of 5 to 7 per cent on average over a period of twelve weeks – provided they are combined with a balanced diet and regular exercise. One thing matters here: a diet shake is not a substitute for a healthy lifestyle, but a practical addition to it.
What should a good diet shake contain?
- High-quality protein (at least 15–20 g per serving): Protein contributes to the maintenance of normal muscle mass and provides a pleasant feeling of fullness.
- Vitamins and minerals: A complete meal replacement should cover at least 23 essential micronutrients so that no supply gaps arise.
- Fibre: It supports normal digestion and helps you feel full for longer after the shake.
- A moderate calorie count: Good diet shakes typically sit between 200 and 250 kcal per serving when prepared with low-fat milk or water.
- A variety of flavours: Anyone who wants to build a shake into everyday life for the long term benefits from different flavours that provide variety.
The Herbalife Formula 1 shake meets all these criteria: with around 220 kcal per serving, about 18 g of protein and 23 vitamins and minerals, it covers the essential requirements of a high-quality meal replacement. The Herbalife Formula 1 Shake Vanilla flavour is particularly popular, as it can be combined in many ways with fruit, porridge oats or nut butter and so never gets boring.
Diet shakes in everyday life: tips for lasting integration
A diet shake shows its benefit above all when it is sensibly built into the daily routine. Many people in Switzerland report that they like their shake best in the morning as a quick breakfast. On stressful days in particular, a prepared shake can stop you reaching for unbalanced snacks. If you would like to shape your morning as a whole, it is worth looking at the The Perfect Breakfast pack – it combines the shake with further products such as the herbal tea and aloe vera drink into a rounded Herbalife breakfast routine.
Proven everyday strategies
- Regularity: Replace a meal at the same time every day. That creates a routine which is easier to keep up.
- Do not forget hydration: Drink at least 1.5 to 2 litres of water or unsweetened tea spread over the day. A Herbalife Herbal Tea Peach can provide pleasant variety here and makes drinking regularly easier.
- Balanced remaining meals: Make sure your regular meals contain plenty of vegetables, lean protein and wholegrain products.
- Plan in exercise: Even 30 minutes of moderate activity a day – brisk walking or cycling, for example – can sensibly complement the effect of a calorie deficit.
Who is a diet shake suitable for?
In principle, diet shakes suit adults looking for practical support with weight control. According to the FOPH nutrition report, around 43 per cent of Swiss adults are considered overweight. The proportion rises particularly in the 35 to 55 age group. For working people with little time to cook in particular, a meal replacement can be a sensible solution for keeping an eye on calorie intake without going without a good nutrient supply.
However, pregnant and breastfeeding women and people with certain pre-existing conditions should seek medical advice beforehand. A diet shake does not replace medical advice and is meant as an addition to a mindful lifestyle – not as a solution on its own.
Current trends in diet shakes
The meal replacement market keeps developing. In 2026 three trends are to the fore above all. First, high-protein shakes with 20 g of protein or more per serving dominate, as a high protein content contributes to the feeling of fullness. Second, personalised nutrition is gaining importance – many users work with apps to calculate their individual calorie needs and adjust their shake plan accordingly. Third, consumers increasingly want transparent ingredients and clear nutritional information.
If you are interested in other people's experiences, you will find on herbalife.com documented wellness results from Swiss users who have built shakes into their everyday life in combination with a balanced diet and exercise.
Your next step to more mindful eating
A diet shake can be a valuable building block on the way to a more balanced diet – provided you choose a high-quality product and combine it with an active lifestyle. Whether you start with a single shake or want to try a structured programme such as the Herbalife weight loss programmes straight away: the most important step is the first one.
Discover our products at myherbal.ch and find the shake that fits your everyday life. If you have any questions, we are always happy to help.