Top Nutrient Deficiencies in Kiwi Kids (And How to Fix Them)

Even with balanced diets, many New Zealand children aren’t getting enough of the nutrients their growing bodies and brains need every day. Local studies have highlighted some common shortfalls in children’s nutrition, and while food should always come first, supplements can play a useful supporting role — especially during growth spurts, fussy eating phases, or seasonal changes. Here are the top nutrient deficiencies found in Kiwi kids, and how parents can help fill those gaps naturally and safely.

Iron – Supporting Energy and Development

Iron is a key mineral that supports healthy red blood cell formation and contributes to normal energy levels and cognitive function in children. Young kids and teenagers, especially those following vegetarian or low-meat diets, may not always meet their daily iron needs through food alone. Including iron-rich foods like lean meats, legumes, and green leafy vegetables is a great start, but during periods of rapid growth or increased need, extra support may be helpful.

ChildLife Liquid Iron offers a gentle, bioavailable form of iron designed for children and is formulated to support healthy iron levels without common side effects like constipation.

Vitamin D – Supporting Bone and Immune Health

Vitamin D is essential for maintaining healthy bones and immune system function. Despite New Zealand’s outdoor lifestyle, many children have low vitamin D levels, especially during the winter months or in regions with limited sun exposure. Safe sun exposure, alongside foods like fatty fish and fortified dairy products, can help. However, when sun exposure is limited, additional vitamin D may be needed.

ChildLife Vitamin D3 Drops offer a pure and easy-to-administer source of vitamin D3, supporting normal growth and immune health in growing children.

Iodine – Supporting Normal Growth and Brain Function

Iodine plays a vital role in normal growth and the production of thyroid hormones, which support brain development and energy metabolism. In New Zealand, mild iodine deficiency has been observed in children, particularly when iodised salt or seafood isn't regularly consumed. Using iodised salt in home cooking and including foods like eggs, fish, and dairy can help maintain healthy iodine levels.

For added support, ChildLife Multi Vitamin & Mineral includes iodine along with a broad range of essential vitamins and minerals, helping to support overall wellbeing and nutritional balance.

Zinc – Supporting Immune Function and Healthy Growth

Zinc is involved in many body functions, including supporting normal immune system function, wound healing, and healthy growth. It also plays a role in taste and appetite, which can influence eating behaviours. Because zinc is found primarily in foods like meat, shellfish, and seeds, some children may not get enough — particularly if they follow limited or grain-heavy diets.

ChildLife Zinc Plus combines highly absorbable zinc with vitamin C to support immune health and overall well-being, especially useful during the colder months or times of increased immune demand.

Omega-3 DHA – Supporting Brain and Eye Development

Omega-3 fatty acids, especially DHA (docosahexaenoic acid), are important for supporting normal brain development, eye health, and nervous system function in children. Since most kids don’t regularly eat oily fish like salmon or sardines, their intake of DHA may be lower than ideal. Including more omega-3-rich foods in the diet is encouraged; however, for children with limited dietary intake, supplementation may help maintain adequate levels.

ChildLife Pure DHA is a fish oil-based soft gel formulated for kids, providing DHA to support their brain and visual development in a format that’s easy to take.

Supporting your child’s nutrition isn’t about perfection — it’s about consistency, balance, and being informed. While a varied diet is the foundation of good health, supplements like those from ChildLife Essentials can provide support during times when a child’s needs aren’t being fully met by food alone. Always read the label and use as directed. If you have concerns about your child’s nutritional intake, speak with your healthcare professional for personalised advice.