Breastfeeding can be energy-consuming, and some experience rapid body changes after childbirth. But if you have excessive weight loss while breastfeeding, feel exhausted, or struggle to eat enough, it's completely natural to be concerned. You shouldn't have to deal with it alone. Your body has been pregnant, given birth, and is perhaps constantly producing milk. It deserves care, nourishment, and rest.

Is weight loss normal when breastfeeding?

It is common to lose some weight after childbirth. Part of the weight loss is due to the baby, placenta, and amniotic fluid no longer being part of the body, and many also experience that fluid in the body gradually disappears.

Breastfeeding requires energy, but this does not mean that everyone automatically loses a lot of weight. The body adapts in various ways, and appetite can also increase when you breastfeed. Therefore, there are significant individual differences in whether weight remains stable, decreases slowly, or decreases more quickly.

However, rapid or unwanted weight loss should be taken seriously. This is especially true if you are not trying to lose weight, or if you simultaneously feel that you are not thriving physically or mentally.

What can cause excessive weight loss during breastfeeding?

There can be many explanations, and often it's several things at once. The initial period with a baby can be intense, sleep is interrupted, and it can be difficult to get regular meals, even when the body needs them.

• You are eating or drinking too little during the day because breastfeeding, practical tasks, and fatigue consume all your time.
• You have a reduced appetite, nausea, or difficulty eating enough.
• You have lost a lot of blood during childbirth and still feel very tired or dizzy.
• You are experiencing stress, anxiety, sadness, or a difficult start to motherhood, which affects your appetite and energy.
• There may be a physical cause that should be assessed by a doctor, such as thyroid changes, infection, or problems with the stomach and intestines.

 

It is not your job to find the cause yourself. But it is a good idea to notice the progression and reach out if something doesn't feel right.

When should you contact a doctor or health visitor?

Feel free to contact your doctor or health visitor if weight loss continues week after week, even if you try to eat regularly. The same applies if you lose weight unintentionally and find it difficult to regain energy.

You should especially react if you experience:

• pronounced fatigue, dizziness, palpitations, or shortness of breath
• fever, night sweats, or a persistent feeling of illness
• persistent diarrhea, vomiting, abdominal pain, or significantly reduced appetite
• great inner restlessness, low mood, or thoughts that everyday life is difficult to get through
• involuntary weight loss of about 5 percent of your usual weight over six months

 

If you feel acutely unwell, faint, are very dizzy, or cannot keep fluids down, you should seek urgent help. Dear, it's not being overly sensitive to get it checked out. It's taking care of yourself.

How to support your body while breastfeeding

You don't have to eat perfectly. The most important thing is that you eat something steadily throughout the day and choose food that is both filling and energizing. Make it as simple as possible, as energy levels are not always high during maternity leave.

1. Eat small, frequent meals if large portions seem overwhelming.
2. Keep light snacks within reach when breastfeeding, for example, rye bread, fruit, yogurt, nuts, cheese, or leftovers from a meal.
3. Drink when thirsty, and preferably place a glass or water bottle at your regular breastfeeding spot.
4. Ask for concrete help so others can cook, shop, or bring you something nutritious.
5. Postpone targeted diets or intense exercise if you are already losing weight rapidly or feel drained.

 

A calm and comfortable breastfeeding spot can also make it easier to remember your own needs. When you are sitting comfortably, it is easier to have water, a snack, and necessities close by, so you don't have to do it all at once.

Does your weight loss affect your milk?

It's understandable if you worry about your baby getting enough. Your body is good at prioritizing milk production, but you still need sufficient food, fluid, and rest to thrive yourself. If you are concerned about your baby's well-being, it is best to get a concrete assessment from the health visitor or a breastfeeding-competent professional, rather than trying to figure it out alone.

Pay special attention to whether your baby seems awake and content during their waking periods, has wet diapers, and follows their weight development at the agreed check-ups. A single feeding or a single day rarely tells the whole story. It is the development over time that is important.

Frequently asked questions

How much weight loss is normal during breastfeeding?

There isn't one number that fits everyone. Some lose weight slowly, others experience almost no change in weight. The most important thing is whether the weight loss is unwanted, rapid, or accompanied by symptoms such as fatigue, dizziness, or reduced appetite.

Can I continue breastfeeding if I lose too much weight?

Often, you can continue breastfeeding while getting help to find the cause and supporting your body with food, drink, and rest. Contact a doctor or health visitor so you can collectively assess both your and your baby's well-being.

Should I eat extra when breastfeeding?

Breastfeeding increases the body's energy needs, but the need varies from person to person. Focus on regular, nutritious meals and snacks rather than counting calories. If you struggle to eat enough, your doctor or a clinical dietitian can help you with a plan that suits you.

Can stress cause weight loss during breastfeeding?

Yes, stress, lack of sleep, and an overwhelming postpartum period can affect appetite, digestion, and the energy to eat. Tell a professional you trust. You deserve care just as much as your baby does.