How Healthy Digestion Supports a Happy Child: An Expert's View
Constipation
What is it?
Constipation is diagnosed as a delay or difficulty in pooping that causes distress to the child. When your little one is struggling to poop, it can quickly affect their comfort, mood and overall happiness, which is why recognising the signs early makes all the difference.
What are the signs?
Difficulty or infrequent defecation- fewer than once every 7 days in breastfed babies, or fewer than once every 3 days in formula-fed babies — lasting for at least 2 weeks. If your child seems uncomfortable or distressed, it is worth speaking to your doctor.
What can I do?
Gently massaging your child's tummy may have a relaxing effect, easing digestion and bringing some comfort to your baby.
If your child is above 6 months old, try to introduce fruits like papaya and prune puree, as both are known to help soften stools and support ease of digestion, a simple, natural step toward keeping your little one comfortable and happy.
Your doctor might recommend clinically proven probiotics, which can help to soften your child's poop to enable smooth passage out of the body.
Switch to a specialised formula designed to help ease bowel movements. Speak to your doctor for advice.
Diarrhea
What is it?
Diarrhoea is when the child passes very runny, liquidy stools, sometimes at an increased frequency or more volume than normal. There may be mucus in the stool. It can occur due to reasons like teething, a virus or antibiotics, and also in reaction to changes in the mother's diet if she is breastfeeding. Baby diarrhoea can make even the happiest baby uncomfortable, so acting quickly and calmly is key to restoring their comfort
What are the signs?
Changes in the stool are observed, such as more stools all of a sudden, possibly more than one stool per feeding, or really watery stools. Do note that it is common for breastfed children to poo up to 6 to 7 times a day, as quickly as immediately after a feed. This should not be mixed up with symptoms of diarrhoea.
What can I do?
- See your doctor if your child has loose watery stools for 24 hours, or if diarrhoea is accompanied by dehydration, vomiting, fever or blood in stool.
- Be sure to talk to your doctor about the amount of fluids your child needs, how to make sure he gets them, when to give them and how to watch for dehydration.
- There might be a need to temporarily switch to a reduced lactose diet, including using a lactose free formula. Please seek advice from your doctor.
Colic
What is it?
Colic is most often described as episodes of irritability, fussing and/or crying in otherwise healthy children. These episodes last at least 3 hours a day, at least three days a week. Colic begins in the first 4 months of life and peaks at around 6 weeks. Healthcare professionals are still unsure of the exact causes, but it typically starts and ends for no apparent reason, making it one of the more challenging tummy troubles for parents to navigate.
What are the signs?
Non-stop, inconsolable crying, especially in the late afternoon or evening.
What can I do?
- Pay attention to your child's hunger cues. Feed him only when he appears hungry, not just because he is crying.
- Extra feeds can make his tummy upset, which may cause more crying.
- Try soothing techniques such as rocking, massage, or a warm bath.
- Choose a specialized formula designed with partially hydrolyzed proteins, lactobacillus reuteri and reduced lactose. Please seek your doctor’s advice.
Learn more about the reasons why your baby might be crying here
Regurgitation
What is it?
Regurgitation (also known as spit up) is when the contents of your child's stomach flow involuntarily out of his mouth due to immature digestive system to keep the milk down.
What are the signs?
Regurgitation, or spitting up, often after a feed. Some children show signs of being uncomfortable due to heartburn, while others are “happy spitters” and are not affected by it.
What can I do?
- Avoid overfeeding.
- Try burping your child more often and in different positions. Prop him up on your shoulder or sit him on your lap to let gravity out with digestion.
- After a feed, make sure there is nothing pressed on his tummy.
- Avoid strapping him to a car seat or chair immediately after a feed.
The Gut-Immunity Connection: Why a Healthy Tummy Matters Beyond Digestion
Many parents think of digestion and immunity as two separate things. In fact, a significant part of your child's immune system lives in their gut. Research suggests that the health of your child's digestive system and the strength of their immune defences are deeply connected, which means supporting healthy digestion is also a meaningful way to support your child's overall immunity.
The gut is home to trillions of microorganisms, collectively known as the gut microbiome. In babies and toddlers, this microbiome is still developing, making early nutrition particularly important. A well-balanced gut environment may help your child's body respond more effectively to everyday bugs and environmental challenges, supporting not just a happy tummy but a stronger, more resilient child overall.
Factors that can influence your child's gut microbiome include mode of delivery at birth, feeding method (breastfeeding or formula), antibiotic use, and the introduction of solid foods. While not all of these are within a parent's control, nutrition remains one of the most accessible levers available. Choosing the right nutritional feeding, introducing a varied diet at the appropriate stage are important factors that may contribute to a healthier gut environment for your child.
It is also worth noting that a child whose gut is well-supported tends to be more comfortable day to day — better sleep, more settled feeding, and less unexplained fussiness. In many ways, a healthy tummy is the quiet foundation of a happy baby.
Good Bacteria in the Gut Supports a Healthy Tummy and a Happy Baby
Good bacteria in the gut promote a healthy tummy, and a healthy tummy is the foundation of a happy, comfortable baby. Knowing what supports your little one's gut health can make a real difference to their everyday comfort and wellbeing.
What is Lactobacillus Reuteri?
Lactobacillus Reuteri can be naturally found in the human body. It is one of the most well-researched probiotics and has been used in the management of certain functional gastrointestinal conditions. Please consult your doctor for medical advice.
Lactobacillus Reuteri, a beneficial bacteria (also known as probiotics), is able to promote a healthy balanced gut flora in your child's digestive system. There are studies to show that it supports gut health. The reported beneficial effects include:
- Softened stools, making it easier and more comfortable for your little one to poop
- Shorter duration of diarrhoea, supporting a quicker return to normal tummy comfort
- Decreased amount of spit-ups, helping mealtimes feel calmer and more settled
- Less crying time in colicky babies, so your little one feels more at ease, comfortable and happy
A comfortable tummy is one of the greatest gifts you can give your child. With the right knowledge and support, most everyday digestive concerns can be managed — so your baby can get back to doing what they do best: being their happy, comfortable little self.
Nutrition Q&A on Tummy Discomforts: Questions reviewed by Prof Marion Aw
Will a lactose-free diet help eliminate gastro discomfort in children?
It can be helpful if the gastro discomfort is due to lactose intolerance. Lactose intolerance is a digestive problem where the body is unable to digest lactose (a type of milk sugar), so lactose stays in the digestive system where it's fermented by bacteria. This leads to the production of gases and watery stools. There is some evidence that a reduced lactose diet can help children with lactose intolerance.
Does soy or goat milk formula help in relieving diarrhoea? Any recommendations of their usage?
It will be difficult to make a recommendation for soy or goat milk formula as a treatment for diarrhoea. It really depends on the cause of the diarrhoea. If the diarrhoea is due to lactose intolerance, then Lactose-Free milk and soy milk (which does not contain lactose) will be helpful. Goat's milk, which also contains lactose, will not be helpful if the diarrhoea is due to lactose intolerance.
Infantile colic (inconsolable crying) not only affects bottle-fed children, but also breastfed children. How can probiotics help to relief the symptoms on breastfed children?
Studies have shown that the amount of fussing and crying in early infancy can be interconnected to the development of the gut flora. Use of probiotics may help alleviate the symptoms of colic. Certain probiotics, like Lactobacillus reuteri when added to the diet has been found to reduce the symptoms of infantile colic in breastfed children. However, the effects of probiotics are both strain and clinical condition-specific, and it cannot be generalised.
Reviewed by Dr Marion Aw
Associate Professor, Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore.
Head & Senior Consultant, Division of Pediatric Gastroenterology, Hepatology, Liver Transplantation and Nutrition. Department
of Pediatrics, Khoo Teck Puat - National University Children's Medical Institute, National University Hospital Singapore.
Adapted from Nestlé Baby and Me brochure, Tummy Troubles
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