How Much Salt Is Too Much for Kids?

Nearly three out of four Australian children eat more salt than recommended, and most parents aren't aware of it. The main issue isn't the salt shaker, but the everyday foods we serve.

Key takeaways:

• Children have much lower daily sodium limits than adults, and most Australian kids are already exceeding them.
• Around 75% of the salt children eat comes from processed and packaged foods, not from cooking or the table.
• Everyday staples such as bread, cheese, breakfast cereals, and sauces are the biggest hidden sources.
• A 2026 Deakin University study found high salt intake raises blood pressure in primary school children, particularly in girls and those living with obesity.
• Small, consistent swaps create a considerable difference over time.

Why salt matters more than most parents realise

Salt is more than merely a flavour concern; it's a health issue. Sodium, the part of salt that affects our bodies, raises blood pressure by drawing water into the bloodstream and putting more pressure on artery walls. While this link is well known in adults, the same thing also happens in children.

A February 2026 study from Deakin University's Institute for Physical Activity and Nutrition found that high salt intake raises the risk of high blood pressure in Australian primary school children. The effect was most noticeable in girls and in children with obesity, giving families another reason to watch what goes on the plate.

High blood pressure in childhood often continues into adulthood. Habits formed early usually last. Paying attention to salt intake now is a simple and effective way for families to protect heart health in the long run.

How much salt is too much for kids?

The recommended daily sodium limits for children, based on National Health and Medical Research Council (NHMRC) guidelines, are much lower than most parents assume:

• 1–3 years: 200–400mg sodium per day
• 4–8 years: 300–600mg sodium per day
• 9–13 years: 400–800mg sodium per day
• 14–18 years: 460–920mg sodium per day

For example, one slice of commercial bread can have 150–200mg of sodium. If a child eats two slices with cheese, they could reach half their daily limit before morning tea.

The Better Health Channel reports that nearly three-quarters of Victorian schoolchildren eat more salt than recommended.

Where is all that salt coming from?

This is where most parents are genuinely surprised. According to Dietitians Australia, around 75% of the salt Australians eat, including children, comes from processed and packaged foods, not from anything added at the table or during cooking.

The biggest culprits in children's diets tend to be foods that don't taste particularly salty:

• Bread and bread-based products - wraps, crumpets, croutons
• Cheese - especially processed cheese slices
• Breakfast cereals - some contain as much sodium per serve as a packet of crisps
• Sauces and condiments - tomato sauce, soy sauce, stock cubes, gravy
• Deli meats - ham, salami, and chicken loaf
• Tinned foods - baked beans, tinned vegetables, soups

Most families don't see these foods as a problem, but that's exactly why salt intake may be overlooked.

A helpful habit is to check the sodium content per 100g on nutrition labels, instead of the per-serve amount, which can be misleading. Aim for less than 400mg per 100g; more than 600mg per 100g is considered high.

Simple swaps that actually work

You don't have to completely change your kitchen. Making small, steady changes can make a big difference over time.

• Try choosing lower-sodium bread. Many supermarkets now offer options with less than 400mg per 100g, and the taste is very similar.
• Choose plain breakfast cereals over flavoured or toasted varieties, which often carry significantly more sodium.
• Rinse tinned legumes and vegetables before using them. This helps remove a good amount of added salt.
• Use fresh or frozen meat instead of deli options wherever possible.
• Use herbs, lemon, garlic, and spices to add flavour to food instead of relying on sauce bottles.
• Offer water as the main drink. High salt intake makes children thirsty, and they may choose sugary drinks when they're thirsty. Changing this habit starts with the foods you serve.

It's important to know that salt taste preferences are mostly learned. As they grow, children who eat less processed food often find salty foods less appealing. Building mindful eating habits early helps reset what tastes normal.

Where to start this week

World Salt Awareness Week (11–17 May 2026) is a good time to check two or three foods your family eats often and look at the sodium content per 100g. There's no need to throw anything away; just start noticing. Awareness is the first step, and many families find that once they start reading labels, they keep going.

If your child has obesity or you are worried about blood pressure, talk to your GP or a paediatric dietitian. There is now sufficient evidence that salt intake warrants discussion, and acting sooner can improve long-term health.