Wellis

Featured articles

  • NutritionReviewed

    The best nutrition tips for a healthy weight

    Discover how smart food choices can help you manage your weight for the long term. Lorrany Lima shares proven tips for a healthy eating pattern.

    Lorrany Lima
    Lorrany Lima · 6 min
    Lachende vrouw stopt haar bordeauxrode blouse in haar spijkerbroek voor een grote staande spiegel in de woonkamer.
  • LifestyleReviewed

    Sleep and weight: what’s the link?

    Sleep has a direct effect on your weight: too little sleep disrupts the hormones that regulate hunger and fullness. Discover how better sleep supports your weight-loss journey.

    Rosemarie Koning
    Rosemarie Koning · 5 min
    Vrouw slaapt rustig op haar zij tussen zachte witte dekbedden en kussens in een licht bed.
  • ExerciseReviewed

    Exercise for beginners: how to get off to a successful start

    Exercise doesn’t have to be complicated — with the right approach, you can take your first step as a beginner safely and with motivation. Rosemarie Koning explains how to build lasting exercise habits.

    Rosemarie Koning
    Rosemarie Koning · 5 min
    Lachende vrouw in bruine sportkleding rekt haar been uit tegen een houten hek in een zonnige binnentuin.
Lachende man in een wit T-shirt zit op de rand van zijn bed met een mok in zijn handen
Weight lossReviewed

Losing weight with injections, does it really work?

Excess weight is a growing problem. Since 1981, the number of Dutch adults with overweight and obesity has grown one and a half times. In 2024, more than half of Dutch adults were overweight. Recently there has been more and more attention for medical aids such as injections to lose weight. But how exactly do these injections work? Who are they suitable for and which ones can you choose? In this article you’ll read all about medical weight loss with injections.

Diego Keijzer
Drs. Diego Keijzer · 5 min
Meer eiwitten, minder kilo’s: afvallen zonder hongergevoel
Weight lossReviewed

More protein, fewer kilos: losing weight without feeling hungry

Looking for a miracle cure for weight loss? Then protein is what you need. A protein-rich diet contributes to weight loss, even if you don’t restrict your calorie intake. But what exactly is protein and how much do you need to lose weight? In this article we dive into the world of protein and you’ll read, among other things, how it helps you lose weight, how much protein you should be getting and which products contain the most protein.

Diego Keijzer
Drs. Diego Keijzer · 7 min
Man in wit T-shirt staat in de deuropening van zijn woning en kijkt naar buiten in het zonlicht
Weight lossReviewed

Does Ozempic cause muscle loss?

GLP-1 medication, such as Ozempic, Wegovy and Mounjaro, is remarkably successful for weight loss. Alongside the positive effects, there are a few points worth pausing on. You may know the well-known side effects, such as nausea and diarrhoea, but what is less well known is the possible loss of muscle. Should you worry about muscle loss from Ozempic and other GLP-1 medication? Here you’ll read everything you need to know about Ozempic and muscle loss, including what you can do to prevent it.

Diego Keijzer
Drs. Diego Keijzer · 5 min
Gezondheidsvoordelen gewichtsverliesmedicatie
Weight lossReviewed

13 possible health benefits of weight-loss medication

What if weight-loss medication does more than just make the kilos disappear? GLP-1 medicines such as Ozempic, Wegovy and Mounjaro appear to be not only a breakthrough for weight loss, but also to affect your overall health. Of course, the medication is no miracle cure and no substitute for a healthy lifestyle, but studies suggest these medicines could become a game changer for health. They may contribute to a lower risk of cardiovascular disease, less inflammation, better sleep and even improvements in your mental wellbeing. In this article we list 13 important possible health benefits for you.

Diego Keijzer
Drs. Diego Keijzer · 5 min
Wegovy® pill: does it really work? Here’s what the results say
Weight lossReviewed

Wegovy® pill: does it really work? Here’s what the results say

Medical treatments for overweight are developing at lightning speed. On 15 July 2026 there was a new breakthrough: the European Commission approved the Wegovy pill. This makes it the first oral GLP-1 treatment for weight management to be approved in the European Union. For people who could benefit from a GLP-1 treatment but would rather not use a weekly injection, that is hopeful news. But what exactly is the Wegovy pill? How much weight can you lose with it, and who is this treatment suitable for? In this article you’ll read everything you need to know.

Diego Keijzer
Drs. Diego Keijzer · 5 min
Afvallen met Mounjaro
Weight lossReviewed

Losing weight with Mounjaro: here’s how it works

In 2024, 50.4% of people in the Netherlands aged 18 and over were moderately or severely overweight [1]. Those extra kilos affect how you feel, move and live. Losing weight isn’t just about how you look, but above all about your health, your energy and your mental resilience. What would it be like to feel good in your own skin again, in a healthy body? Mounjaro, a new injection based on tirzepatide, is a clinically proven method for long-term weight loss. In this article you’ll read everything you need to know about losing weight with Mounjaro.

Diego Keijzer
Drs. Diego Keijzer · 5 min

Wellis helpt je

Ontdek ons wetenschappelijk onderbouwde programma dat jou begeleidt naar een gezond gewicht — op jouw tempo.

Start vandaag