How to Handle Picky Eaters While Choosing the Right Growing-Up Formula

As children aged 2–6 become more active and independent, they require adequate nutrition to support steady growth, cognitive development, and a strong immune system^[1]. But the truth is that most parents choose formula based on brand familiarity, price, or recommendation rather than by evaluating what is actually in the tin.

This guide gives you five specific, practical things to check on a formula label that will tell you far more than any marketing claim, and explains what to look for in each one for a child in the 2–6 year age range.

1. Calcium and Vitamin D — Check Both, Not Just One

Calcium is the nutrient most parents associate with growing-up milk, but calcium without adequate Vitamin D may provide less optimal nutritional support.

For closely related guidance, read our article: Choosing the Right Growing-Up Formula: 5 Things to Check Before You Buy.

Vitamin D is required for calcium absorption, and Vitamin D deficiency is increasingly common among Malaysian children despite our abundant sunlight, due to indoor lifestyles and sun avoidance^[2].

What to look for on the label:

• Calcium: Aim for 200–300mg per serve with around 2–3 servings of calcium-rich foods per day to help children meet their daily calcium needs for healthy bone growth and development^[3]. Check the ‘per serving’ column, not per 100g; serving sizes vary between products.
• Vitamin D form: Look for Cholecalciferol (Vitamin D3) specifically. Some formulas use Ergocalciferol (Vitamin D2), which is less bioavailable. If the label simply says ‘Vitamin D’ without specifying the form, D3 is not guaranteed.
• Together: A product with high calcium and adequate D3 is meaningfully more effective for bone development than one with high calcium but lower or less bioavailable Vitamin D.

2. Iron and Zinc — The Two Most Overlooked Nutrients

A study on Nature Briefing reveals that iron deficiency is the most common nutritional deficiency in Malaysian children, and zinc deficiency follows closely. Both are nutrients commonly monitored in children with selective eating habits: a child who is deficient in either nutrient will eat less, compounding the picky eating problem.
Yet iron and zinc content vary enormously between growing-up formulas and are rarely highlighted in marketing.

What to look for:

• Iron: Children aged 2–6 generally require around 7–10mg of iron per day to support healthy growth, brain development, and red blood cell production. Recommended daily iron intake increases with age, with children aged 4–8 needing about 10mg daily^[4]. A growing-up formula should contribute meaningfully to this — look for at least 2–3mg per serve.
• Zinc: Children aged 2–6 generally require around 3–5mg of zinc per day to support normal growth, immune function, and overall development^[5]. Recommended zinc intake varies slightly by age, with younger toddlers requiring lower amounts and older children needing slightly more.
• Iron and Vitamin C together: Vitamin C significantly enhances iron absorption. A formula that includes both is more effective at supporting iron status than one with iron alone.

3. Protein Source — Grass-Fed Matters More Than Parents Realise

All growing-up formulas contain protein, but the source and quality of that protein vary. Protein in the growing-up formula should ideally come primarily from whey, which is rapidly absorbed and provides a complete essential amino acid profile for tissue growth.

What to look for:

• Whey Protein Concentrate: Should be listed in the top 5 ingredients.
• Grass-fed Australian or New Zealand cow’s milk: Grass-fed milk is commonly associated with a different fatty acid profile compared to conventionally farmed milk than milk from conventionally farmed cows — up to 147% more omega-3s according to research published in the journal Foods^[6]. For the growing-up formula, this translates to better fatty acid composition in the finished product.
• No added soy protein isolate as the primary protein: Some lower-cost formulas use soy protein as a filler. Cow’s milk whey protein is superior for children without dairy intolerance.

4. No Added Sugar — Check the Full List

‘No added sugar’ on the front of a tin specifically means no sucrose (table sugar). It does not necessarily mean the product is free from other added sweeteners such as fructose, maltodextrin, corn syrup solids, or glucose syrup, all of which add caloric sweetness without nutritional value.

What to look for on the ingredients list:

• Carbohydrates should come primarily from Lactose, the natural milk sugar
• Check for: Sucrose, Fructose, Corn Syrup Solids, Maltodextrin, Glucose Syrup — any of these indicate added sweeteners beyond lactose
• A formula where the first carbohydrate listed is Lactose and no other sweeteners appear is generally considered a preferable formulation approach

Note: A formula that tastes very sweet to an adult often contains added sweeteners beyond lactose. Compare the taste of different formulas: a naturally tasty formula based primarily on lactose has a milder, milkier sweetness rather than a sugary one.

5. Functional Ingredients — What Is Actually Backed by Evidence

Most growing-up formula marketing highlights functional ingredients — DHA, prebiotics, probiotics, and immune-support compounds. Not all of these are equal in terms of evidence.
For children aged 2–6, these are the functional ingredients with the strongest evidence base:

Ingredient	What It Does	Evidence Level
DHA (from fish oil)	Brain and eye development support	Strong — extensively studied in children
Prebiotic GOS	Supports gut microbiome and digestive health	Good — well-studied in toddlers
Wellmune® Beta-Glucan	Immune support — commonly used in nutritional formulations for children	Strong — commonly used in nutritional formulations for children
Lutein	Supports eye and visual function	Moderate — supports normal visual development
Generic ‘immune blend’	Varies widely — check individual components	Weak — depends entirely on what is in the blend

Applying These 5 Criteria: Little Étoile Stage 4 as an Example

Introduce to Malaysian moms: Little Étoile Optimum Growing-Up Formula Stage 4 meets the 5 criteria for children aged 2–6 years:

• Calcium at 1,012mg per 100g with Vitamin D3 (Cholecalciferol) — calcium and the most bioavailable form of Vitamin D together
• Iron (Ferrous Sulphate) and Zinc (Zinc Sulphate) at reinforced levels — formulated with nutrients commonly included in childhood nutritional support
• Whey Protein Concentrate from grass-fed Australian cows’ milk — complete amino acid profile with higher omega-3 fatty acid content
• No added sucrose — carbohydrates from Lactose only, mild vanilla flavour designed for everyday consumption
• DHA from fish oil, Prebiotic GOS, and Wellmune® Beta-Glucan (commonly used in nutritional formulations for children), plus Lutein — evidence-backed functional ingredients
• 41 key nutrients at reinforced levels — comprehensive nutrient profile designed for growing children
• Backed by 25+ years of pharmaceutical and nutrition science expertise

>> The best yet underused ways to handle a picky-eater toddler

FAQs

Is a more expensive formula always better?

Not automatically, but premium ingredients, nutrient profiles, and formulation approaches may influence pricing. Price alone is not a reliable indicator, which is why parents should focus on comparing labels and ingredient quality carefully.

How do I compare formulas if serving sizes are different?

Always compare nutrients on a per 100ml of prepared formula basis rather than relying only on powder weight. This provides a more consistent way to compare nutritional information across brands.

How long should my child use the growing-up formula?

There is no fixed endpoint. Many children gradually transition away from formula as their diet variety, appetite, and eating confidence improve naturally over time.

Suggested Reading: Infant and Growing-Up Formula: Key Differences and Nutrients

Reference

1. Crawley, H., & Westland, S. (2013). Infant milks in the UK: a practical guide for health professionals. London: First Steps Nutrition Trust. https://www.firststepsnutrition.org
2. Lim, S. K., et al. (2015). Vitamin D deficiency in Malaysia: a multi-ethnic population study. PLOS ONE. https://doi.org/10.1371/journal.pone.0121841
3. Calcium. (2021). Kidshealth.Org. https://kidshealth.org/en/parents/calcium.html
4. Iron. (2021). Kidshealth.Org. https://kidshealth.org/en/parents/iron.html
5. Office of Dietary Supplements – Zinc. (2025). Nih.Gov. https://ods.od.nih.gov/factsheets/Zinc-Consumer/
6. Benbrook, C., et al. (2018). Enhancing the Fatty Acid Profile of Milk through Forage-Based Rations. Food Science & Nutrition, 6(3), 681–700. https://doi.org/10.1002/fsn3.610

Disclaimer: Breast milk is the ideal nutrition for babies, and it’s crucial to seek professional advice before using infant formula. Introducing bottle feeding can impact breastfeeding, so consider carefully. Besides, good maternal nutrition is critical for breastfeeding, and reversing the decision not to breastfeed may be challenging. Infant formula should always be used according to instructions to ensure the infant’s health. Social and financial implications should be considered when determining a method of feeding.
This guide is for informational purposes only and should not be used to diagnose health conditions or make changes to medical treatments. Always consult with your healthcare professional for advice.