Feeding children isn’t always easy. Between busy schedules, picky eating, and the endless stream of conflicting advice online, parents often feel overwhelmed when it comes to nutrition. As a children’s dietitian, I work with families every day who just want reassurance that their child is eating well and growing healthily.
The good news? Small changes can make a big difference. Below, I’ll share 10 of the most common nutrition mistakes I see in my practice. and simple, practical solutions you can start using today.
1. Letting Picky Eating Take Over
Picky eating is one of the top concerns parents bring to me. It’s tempting to pressure, bribe, or bargain with children to eat “just one bite.” Unfortunately, this usually backfires, making them more resistant.
Fix it:
Offer a variety of foods, without pressure. Sit and eat together as a family. Remember: it can take many exposures before a child accepts a new food. Patience pays off.
2. Over-Relying on Packaged Snacks
Crisps, cereal bars, and biscuits are quick and convenient, but they’re often high in sugar, salt, and saturated fat. While fine occasionally, too many can push out nutrient-rich foods children need.
Fix it:
Keep healthier swaps on hand: fruit, cheese cubes, boiled eggs, veggie sticks with hummus, or oat-based snacks. Aim for balance: most snacks should include at least one food group from fruit/veg, protein, or wholegrains.
3. Confusing Portion Sizes
Many parents worry their child “isn’t eating enough,” when in fact their expectations are based on adult portions. Children’s energy needs are smaller and vary day to day.
Fix it:
Use your child’s hand as a guide: one portion ≈ the size of their fist. Let your child decide how much to eat from what’s on offer—this helps them develop self-regulation.
4. Skipping Breakfast
Rushed mornings can lead to children heading to school without breakfast. But breakfast plays an important role in concentration, mood, and energy.
Fix it:
Quick but balanced options include:
Porridge topped with berries and seeds Wholegrain toast with scrambled eggs Yoghurt with fruit and oats Overnight oats made the night before.
5. Too Much Juice, Not Enough Water
Even 100% fruit juice is high in natural sugars and can damage teeth. Sugary drinks are linked to poor concentration, weight gain, and dental issues.
Fix it:
Water should be the main drink of the day. Milk is also a good choice for younger children. If serving juice, dilute it and keep to mealtimes.
6. Eating in Front of Screens
It’s easy to let mealtimes happen in front of the TV or iPad, but distracted eating means children don’t tune into hunger and fullness cues.
Fix it:
Create screen-free mealtimes where possible. Sit at the table together and use the time to connect as a family.
7. Protein Confusion
Some parents worry their child isn’t getting enough protein, while others give far more than needed. In reality, most children in the UK get plenty, sometimes too much.
Fix it:
Good protein sources include lean meat, chicken, fish, eggs, beans, lentils, tofu, and dairy. A child usually only needs a their palm-sized portion of protein per meal.
8. Not Involving Children in Cooking
When children aren’t part of food preparation, they may be less curious and more resistant to new foods.
Fix it:
Involve them in shopping, stirring, chopping soft foods (with a safe knife), or plating up. Research shows children are more likely to try foods they’ve helped prepare.
9. Over-Restricting Treat Foods
Banning sweets, biscuits, or crisps completely can make them more appealing—and may lead to overeating when children do have access.
Fix it:
Keep treat foods available occasionally, but not the focus. Teach balance: “Everyday foods” (fruit, veg, wholegrains, protein, dairy) vs. “sometimes foods” (crisps, cake).
10. Forgetting About Fibre
Many children don’t get enough fibre, which is important for digestion and long-term health. Low-fibre diets can lead to constipation, a very common problem in children.
Fix it:
Offer wholegrain bread, oats, beans, lentils, fruit, and vegetables. Simple swaps, like half-and-half white and wholemeal pasta, can increase fibre without a fuss.
Frequently Asked Questions (Parents Often Ask Me)
What is a balanced diet for kids?
A balanced diet includes foods from all major food groups: carbohydrates, protein, fruit and vegetables, dairy (or alternatives), and healthy fats. Balance across the week is more important than perfection at every meal.
How can I stop my child being a fussy eater?
Avoid pressure and keep mealtimes relaxed. Offer small amounts of new foods alongside familiar favourites, and keep exposing them regularly without making it a battle.
Do children need supplements?
In the UK, children aged 6 months to 5 years are advised to take vitamin A, C and D supplements, unless they’re getting enough through fortified foods or diet. Vitamin D is also recommended for older children during autumn/winter.
Small Changes, Big Impact
Nutrition doesn’t have to be complicated or stressful. By avoiding these common pitfalls and making small, consistent changes, you can help your child build healthy eating habits that last a lifetime.
If you’d like personalised support, I offer one-to-one consultations for families. Together, we can create a plan that works for your child. and takes the stress out of mealtimes.
To get in touch visit my services page here