Losing weight with a reduced appetite? Don’t forget these nutrients

Are you eating less because of a calorie-restricted diet, intermittent fasting or a GLP-1 programme? Discover which nutrients deserve extra attention during weight loss. 

You’re losing weight, but is your body still getting everything it needs?
Perhaps you’re following a low-carb eating pattern, intermittent fasting, a calorie-restricted diet, or a programme where you experience a reduced appetite. Many people notice that this makes it easier to eat smaller portions and lose weight. 

That is often exactly the goal. 

But there is another side to it. When you eat less, you automatically take in fewer nutrients. And it’s precisely during weight loss that your body needs enough protein, vitamins, minerals and fibre to keep functioning properly. 

Many people focus entirely on the number on the scales, while the quality of the diet remains just as important. 

Eating less doesn’t just mean fewer calories
Weight loss usually happens because you take in less energy than you use. That energy deficit causes your body to draw on fat stores. 

At the same time, a smaller plate often also means: 

• less protein;
• fewer vitamins and minerals;
• less fibre;
• fewer healthy fats. 

As a result, important nutrients can come under pressure more quickly. 

You don’t lose fat only
One of the most underestimated consequences of weight loss is that you don’t lose fat mass only. 

Whether you lose weight through a calorie-restricted eating pattern, intermittent fasting, a low-carb lifestyle or a GLP-1 programme: alongside fat mass, muscle mass can also be lost.
That’s a shame, because muscle mass supports your day-to-day movements, helps you stay strong and plays an important role in an active lifestyle.  That’s why protein deserves extra attention during weight loss. 

1. Protein: the most important nutrient during weight loss
Protein contributes to the growth and maintenance of muscle mass. When you eat less, it becomes more important to consciously choose protein-rich foods such as: 

• eggs;
• dairy;
• pulses;
• tempeh;
• fish;
• meat;
• protein shakes. 

Try to add a source of protein to every meal. 

2. Vitamin B12: especially important if you eat fewer animal products
When you eat less or consume fewer animal products, your intake of vitamin B12 may decrease. 

Vitamin B12 contributes to: 

• the normal functioning of the nervous system;
• a normal energy-yielding metabolism;
• the reduction of tiredness and fatigue. 

3. Vitamin D: an important foundation
Many people in the Netherlands do not get enough vitamin D. 

Vitamin D contributes to: 

• the maintenance of normal bones;
• the maintenance of normal muscles;
• the normal function of the immune system. 

During a period of weight loss, this remains an important foundational nutrient. 

4. Magnesium: support for muscles and energy
Magnesium is found in nuts, seeds, pulses and green vegetables. These are exactly the foods that are sometimes eaten less when appetite decreases. 

Magnesium contributes to: 

• normal muscle function;
• normal energy metabolism;
• the reduction of tiredness and fatigue. 

5. Fibre: perhaps the most forgotten nutrient
When people start eating less, fibre intake often drops too. 

That’s a pity, because fibre: 

• supports healthy digestion;
• serves as a food source for beneficial gut bacteria;
• helps support a varied diet. 

So choose vegetables, fruit, pulses, wholegrain products, nuts and seeds every day. 

6. Omega-3 and healthy fats
When you eat less, you often also consume fewer healthy fats. EPA and DHA contribute to the normal function of the heart. DHA also contributes to the maintenance of normal brain function with a daily intake of 250 mg DHA. 

Extra attention: fluids and electrolytes
During weight loss, many people lose not only fat but also fluid in the first few weeks. This means electrolytes such as sodium, potassium and magnesium may deserve extra attention. 

Especially if you: 

• exercise a lot;
• follow a low-carb eating pattern;
• sweat a lot;
• eat less than you used to. 

Which supplements can form a good foundation?
Depending on your eating pattern, you might consider: 

• a protein shake;
• a multivitamin;
• extra vitamin D;
• magnesium;
• omega-3;
• fibre;
• calcium;
• electrolytes. 

Supplements are intended to complement a varied diet, not replace it. 

The key takeaway
Weight loss isn’t just about eating less.
Whether you’re losing weight by eating more mindfully, following a calorie-restricted eating pattern, or experiencing reduced appetite during a GLP-1 programme: make sure your body continues to receive enough nutrients.

Because successful weight loss isn’t only about losing kilos, but also about maintaining muscle mass, energy and vitality.