- Health advice
- 8 min read
- Jul 13, 2026
Every parent wants to give their child the best possible start. During the early years, when the brain is growing faster than at any other point in life, the nutrients children receive matter more than most people realise. One nutrient that deserves far more attention is DHA, a long-chain omega-3 fatty acid that plays a foundational role in brain development, cognitive function and eye health.
What is DHA and why does the developing brain depend on it?
DHA makes up a significant portion of the brain's structural fat, particularly concentrated in the grey matter and retina, where it plays a critical role in how neurons communicate and how visual information is processed. During childhood, neural pathways are forming, synaptic connections are multiplying, and the foundations of learning, attention, memory and behaviour are being laid.
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TGA Permitted Indications for DHA: • Supports brain function • Supports cognitive development • Supports eye health • Supports general wellbeing
Always read the label and follow the directions for use. |

Why many children are deficient in DHA
Unlike some nutrients the body can produce on its own, DHA cannot be synthesised efficiently and must come directly from the diet, which is where many Australian families fall short. The typical child's diet is heavy in processed foods and limited in oily fish, with fussy eating, food intolerances and fish allergies all compounding the problem.
The Original Source: Why Algae comes first
Here is something many parents do not know: fish do not actually produce DHA. They accumulate it by eating microalgae. Algae is the original and primary source of DHA in the marine food chain, fish are simply the middlemen.
This matters for several reasons. Algae-derived DHA is plant-based, sustainably produced and completely free from the concerns associated with fish including heavy metal accumulation, ocean contaminants and overfishing. It delivers DHA directly, without needing to go through a fish first.
For families who are environmentally conscious, for children who cannot or will not take fish oil, and for those seeking a cleaner, more traceable source of omega-3, algae oil represents a significant step forward. It is DHA in its most direct and original form.
The Allergen barrier
Fish oil is one of the most commonly recommended omega-3 supplements, but for a significant number of families, it simply is not an option. Fish and shellfish are among the top eight allergens, and reactions can range from mild digestive discomfort to serious allergic responses. For these children, traditional fish oil supplementation carries real risk.
Even for children without a diagnosed allergy, fish oil can be a practical challenge. The taste and smell are frequently a barrier for children, particularly fussy eaters, and compliance with supplementation suffers as a result.
Algae-based DHA resolves both of these issues. It is inherently free from fish and shellfish allergens, making it a safe and accessible option for families where fish oil is not suitable. And because it can be formulated without the characteristic fish odour and taste, it is generally far better accepted by children.
Witsbb DHA Algae Oil
Witsbb DHA Algae Oil is formulated specifically with children in mind, delivering algae-derived DHA to support brain function, cognitive development and eye health without fish, without allergens and without compromise. It is particularly suited to children with fish or shellfish allergies, families following vegetarian or vegan lifestyles, children with limited fish intake, and families looking for a sustainable, plant-based omega-3 option.
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Witsbb DHA Algae Oil • Algae-derived DHA: the original omega-3 source • Allergen-free: no fish, no shellfish • Supports brain function, cognitive development and eye health • Suitable for vegetarian and vegan children • Formulated for children’s daily use
Always read the label and follow the directions for use. |
PRACTITIONER Q&A
When Do I Recommend DHA for Children?
Q: At what age should children start taking a DHA supplement?
A: DHA is important from the very beginning of life. It accumulates in the brain rapidly during the first years. For children who are not getting adequate DHA through diet, supplementation can be considered from infancy onwards, though the appropriate dose will vary with age. I always recommend a practitioner assessment to determine what is right for each child individually.
Q: My child eats fish occasionally. Do they still need a supplement?
A: It depends on how much fish they eat and which types. Oily fish like salmon, sardines and mackerel are the richest sources, but many children eat these infrequently or prefer milder white fish, which is much lower in DHA. If fish is not a regular feature of the diet, or if your child is a fussy eater, it is worth considering whether their intake is genuinely sufficient. A dietary assessment is the most reliable way to find out.
Q: Why do you recommend algae-based DHA rather than fish oil for children?
A: For children with fish allergies, the answer is straightforward, fish oil is not safe for them and algae-derived DHA is. But even for children without an allergy, I increasingly prefer algae oil. It is the original source of DHA, it avoids any concerns about ocean contaminants or heavy metals, it is sustainably produced, and in my experience, children tolerate it better than fish oil. For families following plant-based diets, it is also the only viable option.
Q: What signs might suggest a child is not getting enough DHA?
A: DHA supplementation is not a treatment for any specific condition. What I can say is that DHA plays an important role in supporting brain function, cognitive development and eye health, and that ensuring adequate intake is a sensible foundation for general wellbeing. If you have specific concerns about your child’s development, please speak with your healthcare practitioner or reach our to a Mr Vitamins practitioner.
Q: Can children take DHA alongside other supplements?
A: Generally yes, though I always recommend a personalised assessment before combining supplements in children. DHA is well-tolerated and has an excellent safety profile, but dosing, timing and any interactions with other nutrients or medications should always be considered on an individual basis.
Find Witsbb DHA Algae Oil at Mr Vitamins
Witsbb DHA Algae Oil is available in-store and online at Mr Vitamins, your trusted source for children’s brain supplements, allergen-free DHA and algae omega-3 for kids across Australia.
Not sure if it is the right fit for your child? Our qualified team at Mr Vitamins are available in-store and online for personalised guidance. Remember, every child is different, and the right support always starts with understanding the individual.
Always read the label and follow the directions for use. This content is for informational purposes and does not constitute medical advice. Consult a qualified healthcare practitioner for personalised guidance
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