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Constipation is one of those topics hardly anyone likes to talk about — and yet an incredible number of people deal with it.
I struggled with it myself during pregnancy and eventually started looking for a simple, natural way to get my digestion moving again.
That is when I came across prune juice.

And actually:

For me, just one glass was enough to notice a difference.

Since then, I have found prunes rather fascinating. Not because they are some kind of magical cure, but because this unassuming fruit can have a surprisingly practical effect.

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Why Can Prune Juice Help with Constipation?

Prune juice has long been considered a classic home remedy for sluggish digestion, and there is now also scientific evidence that both prune juice and prunes can help support bowel function.

Prunes contain, among other things, sorbitol.

Sorbitol is a sugar alcohol that can help retain water in the bowel.
This can make stools softer and easier to pass.

Fruit acids and smaller amounts of soluble fibre may also contribute to the digestive effect.
Whole or dried prunes contain significantly more fibre as well.

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Prune Juice or Prunes?

Both can be useful. Prune juice has the advantage of being easy to drink
and still contains sorbitol, although some of the fibre is lost during juicing.
Prunes, on the other hand, contain more fibre.

One simple option is:

Soak prunes overnight in a little water and eat them the next morning together with the soaking water.

You can also add them to:

muesli,
porridge,
yoghurt,
or a smoothie.

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How Much Prune Juice Should You Drink?

There is no perfect amount that works for everyone.
Personally, I have had good results with one glass a day.
If you are sensitive, however, it is better to start with a smaller amount.

Because too much prune juice can also lead to:

• bloating
• stomach rumbling
• or diarrhoea

So I think the simplest approach is best:

start slowly and see how your own body responds.

What About Babies and Toddlers?

Prunes are also commonly used in the diets of babies and young children.
With my own children, for example, I often offered prune purée when their digestion was sluggish.
With infants, however, or when constipation lasts for longer, I would not simply experiment with larger amounts of juice.

With infants, however, or when constipation lasts for longer, I would not simply experiment with larger amounts of juice.
Especially with very young children, it is best to speak to a paediatrician or midwife if you are unsure about the cause of digestive problems.

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Prunes Can Do More Than Support Digestion

Prunes are made up largely of water while also providing a range of vitamins, minerals, and plant compounds.

They contain, among other things:

potassium,
vitamin K,
various polyphenols,
and carotenoids.

That does not make prunes some spectacular “superfood”.

But they are a good example of how many valuable nutrients can be found even in simple, everyday foods.

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Prunes and Eye Health

Prunes contain various plant pigments from the carotenoid family.
These include beta-carotene and other related compounds. Carotenoids play different roles in the body.
Certain ones, such as lutein and zeaxanthin, are especially interesting in relation to eye health because they are also found in the retina.

However, I would not turn that into the claim:

“Prunes prevent retinal diseases.”

The research is far more complex than that.

What can be said is:

Prunes fit well into a varied, plant-rich diet

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Can Prunes Help with Weight Loss?

Fresh plums have a high water content and are relatively low in calories.
Depending on the variety, they contain around 45 to 50 kilocalories per 100 grams.
That can make them a good alternative when you are craving something sweet.

Prunes, however, are more energy-dense because drying removes water, which concentrates both sugar and calories.
So I would not describe plums or prunes as a “weight-loss trick”.
But they can be a good sweet alternative to highly processed snacks.

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What About Cravings?

Prunes contain fibre and carbohydrates, so they can certainly help you feel full.
But here too, I would avoid making promises that go too far.
Prunes do not automatically prevent cravings, nor do they by themselves protect against diabetes or cardiovascular disease.

They can, however, be part of a balanced meal or a sensible snack and make a useful contribution.

And sometimes that is already enough to be helpful:
eating something sweet that offers more than just sugar.

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Do Prunes Protect Against Colorectal Cancer?

There is research into how fibre, the gut microbiome, and an overall plant-rich diet are connected with bowel health.

But that does not mean we can conclude:
“If you eat prunes, you protect yourself against colorectal cancer.”

Likewise, the claim that chronic constipation automatically doubles the risk of colorectal cancer is not clearly established.

A more careful way to put it is:
A varied, fibre-rich diet can support bowel health. Regular physical activity is also part of a healthy lifestyle.

Plums and prunes can help stimulate digestion and increase fibre intake.
That makes them a useful part of a balanced diet — but no single food can protect against colorectal cancer.

When Is Prune Juice No Longer Enough?

Occasional constipation is common and usually harmless.
But if it lasts for longer or keeps coming back, it is better not to rely only on home remedies.

Especially if you have:

severe or worsening abdominal pain,
blood in the stool,
unexplained weight loss,
fever,
vomiting,
or a sudden and significant change in bowel habits,

the cause should be checked by a medical professional.

Prune juice can be helpful for occasional constipation.

But persistent or unusual symptoms should be medically assessed rather than treated with home remedies alone.

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Prune Purée Without Added Sugar

If you prefer eating your prunes with a spoon rather than drinking them, you can easily make a simple prune purée.
The fruit already brings plenty of natural sweetness.

Ingredients

3 kg ripe plums or damsons
1 tsp cinnamon
1 tsp ground cloves

Optional:
a little date purée or another sweetener to taste

Preparation

1. Preheat the oven to 180°C conventional heat, or about 160°C fan-assisted.
2. Wash the plums, halve them, and remove the stones.
3. Place them in an ovenproof pot or a large baking dish together with the cinnamon and cloves.
4. Cook uncovered in the oven for around two hours, allowing the fruit to reduce.
5. Stir regularly during cooking.
6. Purée until smooth.
7. If you want to preserve the purée for longer storage, use clean or sterilised jars and a suitable preserving method.

The purée tastes great:

on bread,
in porridge,
with yoghurt,

or simply on its own.

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Where Can You Buy Prune Juice?

Prune juice is often available in well-stocked supermarkets, drugstores, or organic food shops.
It is best to choose one with as little added sugar as possible.
Direct-pressed or naturally cloudy prune juice can also be a good option.

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My Conclusion

Prune juice is not a miracle cure.
But for occasional constipation, it can be surprisingly practical.
What I especially like is that its effect is not based only on an old home remedy.
Modern research also suggests that prune juice and prunes can support digestion.

Perhaps natural support does not always have to be exotic.
Sometimes it is simply sitting on a supermarket shelf.
Or growing on a tree in late summer.

A glass of prune juice will not solve every digestive problem.
But sometimes that small bit of support is enough to get things moving again.