Parents often hear that new foods should be introduced one at a time when their baby starts solids. So when they look at a GrowHappy ImmunoButter packet and see walnut alongside strawberry and peach, for example, a natural question comes up: Should I introduce every ingredient separately before feeding this packet?
For most babies, the answer is no.
While we recommend introducing common food allergens individually at first, that does not mean every new fruit, vegetable, or other food needs to be introduced on its own. In fact, current American Academy of Pediatrics (AAP) guidance supports introducing a variety of foods as babies begin solids.
And that is exactly why we intentionally include multiple whole foods in every GrowHappy packet.
One Top Allergen, Multiple Foods
There is an important distinction between introducing multiple allergens at once and introducing multiple foods at once.
Each GrowHappy ImmunoButter contains only one of the common allergens we are introducing at that time. Our Peanut ImmunoButter, for example, contains peanut alongside blueberries and goji berries. The additional ingredients are foods chosen to help build greater diet diversity, not additional common allergens being introduced simultaneously. In fact, my published research shows that introducing a small daily amount of blueberry during infancy may support healthy immune responses and symptom resolution. Infants whose symptoms improved showed increased cells that help to reduce allergies, although larger studies are needed to confirm these findings.
Technically, a person can be allergic to almost any food, including fruits such as strawberries or peaches. But these are not among the common food allergens that account for the vast majority of food allergies.
When introducing common allergens, we recommend introducing them individually so that if your baby does have a reaction, it is easier to identify which allergen caused it. That is very different from needing to introduce every single new food separately.
The Advice Around Starting Solids Has Evolved
For years, parents were commonly told to introduce only one new food every 3 to 5 days. Current guidance has evolved. The AAP’s Book on Caring for your baby and young child supports introducing multiple foods rather than requiring families to introduce every new food individually.
In practice, that means a baby might eat banana and peach at the same meal without needing to have eaten each food separately for several days beforehand.
We still take a more deliberate approach to common allergens. But there is no reason most families need to work through every fruit, vegetable, grain, and other food one at a time.
Because Starting Solids Is About More Than Allergens
GrowHappy was created to make consistent allergen feeding easier. But our approach to early nutrition has never been only about allergens. It is also about diet diversity.
The first year of eating is an incredible opportunity to introduce babies to different foods, flavors, textures, fibers, and nutrients. Research increasingly points to the importance of a diverse diet for the developing gut microbiome and immune system.
This is why we intentionally pair each allergen with different whole-food ingredients across the GrowHappy range. Rather than giving your baby cashew alone every time, for example, we can use that feeding opportunity to expose them to additional plant foods at the same time, in our case kale and mango.
Across our ImmunoButters, babies are introduced to a much broader range of whole-food ingredients as part of their regular allergen-feeding routine.
You Can't Build Diet Diversity One Food Every Three Days
There is also a practical reason the old approach can be limiting. If parents wait 3 to 5 days between every single new food, it becomes incredibly difficult to expose babies to the variety of foods we would ideally like them to experience during this important developmental window.
Many families now aim to introduce a wide variety of foods during baby's first year of eating, sometimes using milestones like 100 foods before age one as a fun way to encourage variety.
That is not a clinical requirement or a number parents need to stress about hitting. The larger idea is simply that variety is valuable. Introducing multiple non-allergenic foods together makes that much more achievable.
Do I Need to Introduce the Fruits and Vegetables in GrowHappy First?
For most babies, no. Once your baby is developmentally ready for solids and confidently eating a few foods, you do not need to separately introduce every fruit and vegetable contained in a GrowHappy packet before offering it.
We do recommend introducing each top allergen individually once or twice at first. This makes it easier to identify the cause if a reaction occurs.
So if you are feeding Walnut ImmunoButter for the first time, walnut should be the top allergen you are introducing; you may want to try it the next day too! You do not also need to spend several days separately introducing strawberry and then peach before you can offer the packet.
For babies with severe eczema, an existing food allergy, or another reason they may be at higher risk for food allergy, talk with your pediatrician or allergist about the best approach to introducing allergens.
