When children are unwell, they often eat and drink less than usual. Firstly, try not to worry as it’s quite normal for us all, and children are pretty good at regulating themselves.
That being said, proper hydration and nutrition are important in helping them regain strength.
Below, we’ve shared some strategies to help children stay hydrated and fed when they’re poorly or recovering from an illness.

The Importance of Hydration When Children Are Unwell
Hydration is essential for recovery. If your child is drinking less than usual, encourage frequent small sips of their favourite drinks.
There’s no specific fluid that must be given—rehydration salts from the pharmacy (such as Dioralyte) can be helpful, but many children prefer familiar drinks like diluted fruit juice or warm herbal tea.
Signs of Dehydration – When to Seek Medical Advice
Monitor for these warning signs that indicate a need for medical attention:
- Significantly reduced fluid intake and infrequent urination.
- Dry lips and tongue, which suggest dehydration.
- A sunken fontanelle (soft spot on a baby’s head) which can be a sign of severe dehydration.
- Lethargy or excessive sleepiness that is out of character.
- Persistent lack of appetite even after the acute illness has passed.
If your child shows any of these symptoms, seek medical advice promptly.
See our top-tips article about looking after an unwell child: My Child is Ill – What Should I Do?
Encouraging Fluids When a Child Is Sick
Keeping your child hydrated is one of the most important steps in supporting their recovery.
When they are unwell, they may not feel like drinking, so offering fluids in different forms can make it easier for them to stay hydrated.
If they are reluctant to drink:
- Many foods have high fluid content and can help keep them hydrated. Offer ice lollies, custard, yoghurt, soup, or ice cream. These options provide hydration while being more appealing than plain water.
If they can manage drinks but struggle with food:
- Try high-energy drinks like hot chocolate, milkshakes, or smoothies. Using full-fat milk and adding extras like cream or ice cream can boost calorie intake when solid food is difficult.
If they can only manage small mouthfuls:
- Offer high-energy foods they usually enjoy. This temporary adjustment can provide extra energy while they recover.
- Once they feel better, reintroduce their normal, healthy eating habits. You can explain this to them so they understand it’s just for the duration of their illness.

Boosting Nutritional Intake When Your Child Is Unwell
If your child is eating very little, small modifications can help increase their calorie and nutrient intake:
- Enhance meals with additional calories: Add extra butter to mashed potatoes or mix cream cheese into a tomato-based pasta sauce for a more nourishing meal.
- Offer energy-dense snacks: Small amounts of nut butter, avocado, or hummus on crackers can help sustain energy levels.
- Provide easy-to-digest foods: Soft foods like bananas, rice, toast, and plain crackers are gentle on the stomach.
Please note that information articles are not a substitute for direct medical advice. If you have any concerns, please seek personalised advice from a doctor.
Final Thoughts
Sick children often have reduced appetites, but with small adjustments, you can ensure they receive adequate nutrition and hydration.
Prioritise fluids, offer high-energy foods in small amounts, and enhance meals with extra nutrients when needed.
Most importantly, watch for signs of dehydration and seek medical attention if necessary.
If you have any concerns about your child, book an appointment here.
