The nutrients children really need
It’s true that children require a broad range of vitamins and minerals – such as vitamins A, B, C, D, E, and K, along with folate, calcium, iodine, iron and zinc – for healthy development. These nutrients play essential roles in brain and nerve development, vision, bone strength, immune function, metabolism and maintaining a healthy weight.
However, for most healthy children, these nutrients can and should come from food – not from supplements.
Even children with selective eating habits typically receive adequate nutrition from everyday foods, many of which are fortified. Common staples such as breakfast cereals, milk and bread are often enriched with key nutrients such as B vitamins, iron, calcium and iodine.
What the science says about supplements
Although many children’s supplements claim to support immunity, growth, or overall wellbeing, there is little robust scientific evidence that they improve health outcomes or prevent illness in otherwise healthy children.
Leading health bodies advise that children who consume a varied diet do not need additional supplementation.
Research consistently shows that getting vitamins and minerals through whole foods is superior to taking them in supplement form. Foods provide these nutrients along with fibre, enzymes, and bioactive compounds, such as phytochemicals and healthy fats, which enhance absorption, metabolism and overall efficacy in ways isolated supplements cannot replicate.
Potential risks and unintended consequences
Parents should also be aware that supplements are not risk-free.
Fat-soluble vitamins – such as A, D, E and K – can accumulate in the body if consumed in excess. If they reach toxic levels, they can cause cause health issues. In the case of A and B vitamins, these issues can be severe and even cause death.
High doses of other water-soluble vitamins, such as vitamin C, may not be dangerous, but can cause side effects like diarrhoea or interfere with the absorption of other nutrients.
Many children’s supplements are flavoured or sweetened to make them more appealing. While this might make them easier to administer, it also introduces added sugars and artificial ingredients into children’s diets – potentially undermining healthy eating habits.
There is also a psychological dimension to consider. Routinely giving children supplements in response to normal eating behaviours, such as fussiness or selective food preferences, may inadvertently teach them that pills are a substitute for a nutritious diet, rather than a temporary aid.