When is the right time to start solids?

Main image for the article [When is the right time to start solids?]. Pictured is a mother helping her baby eat from a spoon.

There is still a lot of confusion out there when it comes knowing the best time to start solids. Some parents are being instructed to start as soon as their baby shows an interest in food. Others go strictly by age, and yet others advise that solids aren’t even that important to start prior to one year of age! It’s hard to know what’s right when even doctors give conflicting information sometimes, and you want to make sure you’re doing what’s safest for your baby.

So let’s get dive into the most updated recommendations and get the real answer!

What the health experts say

Regulatory bodies like the World Health Organization, Health Canada and the American Academy of Pediatrics all agree – it’s best to wait until your baby is around six months of age before offering any food other than breastmilk. This means…no cereal in the bottle, no purees, no finger foods, no non-milk beverages…nada. 

So why do the experts use vague descriptions like “around” 6 months?

Truth be told… it’s less about age and more about when your baby shows all of the developmental signs of readiness. Wondering what those are? I’ve got you covered!

The developmental signs of readiness to start solids include:

  • The ability to sit in an upright position independently
  • Good head and neck control
  • The ability to reach for objects and bring them to their mouth with precision
  • Showing interest in food!
  • Diminished tongue thrust reflex 
  • The ability to close their lips around a spoon, hold food in their mouth (at least partially), and swallow.

Once babies show all of the signs of readiness… you’re off to the races! We want to wait until all of these signs are present for safe, healthy, and effective feeding. Simply showing an interest in food is not enough, no matter how cute your baby looks when they beg! Having all of the signs present usually happens around six months of age. For premature babies, it may take even longer for these signs to emerge. 

TIP: Starting when they’re fully ready vs. when you’re eager to start is always best. I know it can be hard to resist (baby’s first food is an exciting milestone), but stick with me to see why I say this.

Click here to download a checklist to post to your fridge with the developmental signs of readiness!

Pictured is a banner with a free download of My Little Eaters™ Readiness For Solids Guide.

Risks of starting solids too early

Many people (including many doctors), still believe that introducing solids before significantly before 6 months of age is appropriate and even encouraged, thinking it will help with things like sleep, growth, and satisfying the interest in food your baby is showing. 

Guess what? Not only is this not true, but too early an introduction can be associated with negative risks!

Here’s why…

Starting solids before 6 months can increase the risk of choking

If your baby is not meeting the developmental signs of readiness, which is more likely if you’re offering solids before 6 months of age, there is an increased risk of choking. Not being able to sit up independently, and accept and manipulate food on the tongue, means they are much more likely to have food get lodged in their airway. It will be much easier for both you and your baby to enjoy the experience of introducing new foods if you wait for these signs; less risk for baby means less stress for you!

Early introduction of solids can cause babies to drink less than the recommended amount of breastmilk/formula

Sometimes I hear health professionals recommending not only to start solids too early, but to start them on 3 meals a day right away! Even with only 1-2 meals a day, you may be running the risk that your baby will begin to decrease the amount of milk they’re drinking. We still want milk to be the primary source of calories (especially up to 10 months of age). Decreasing the amount of milk consumed can not only lead to dehydration, but babies miss the opportunity to get beneficial nutrients, antibodies, probiotics and a myriad of other nutritional benefits that breastmilk/formula provides. This is why we recommend starting your baby off with only 1-2 “meals” a day. 

Tip: Remembering that a baby’s main source of nutrition will be milk until they turn one year allows you to see the other important and essential benefits of mealtime. Use this time to experiment with new flavours and textures with your baby! It can be exciting for both of you, PLUS you will begin to learn more about your baby while seeing their little personality emerge.

Starting solids around 3 or 4 months can lead to an increased risk of obesity, and diabetes

Though the reason isn’t 100% clear as to why this is the case, there are several possible contributing factors that can lead to these health issues. It could be that solid food introduction before 6 months is linked to earlier cessation of breastfeeding (which is linked with lower BMI). Secondly, babies tend to be overfed when introduced to purees. There are also changes in the gut microbiome that occur, or it could be for some other, yet to be determined, reason.

Introduction of solids at 4 months or younger shows increased risk of digestive issues and eczema

Your baby’s immune and digestive system isn’t fully equipped to properly process solid food and all of the new proteins, fats and carbohydrates that come with it. This can sometimes cause digestive issues such as increased gas, constipation, or an upset stomach. Babies this age also have a somewhat “leaky gut”, meaning large proteins from food can pass through their gut lining easily and cause allergic reactions, such as eczema. This is not fun for anyone! And if your baby is uncomfortable every time they eat, what is meant to be a happy, exciting experience can quickly become a negative one for the whole family.

Baby won’t be developmentally ready to eat non-liquid food

Research shows that babies aren’t developmentally ready to manage semi-solid or solid food until around 6 months of age; a purely liquid diet of breastmilk or formula is their dream menu until then, so don’t worry they are not missing out!

The only exception that may require introducing solids around 4 months is for babies who have a high risk of developing a food allergy due to their family history. In certain cases, your doctor may advise you to introduce an allergenic food, in very small amounts, to your baby in order to build up a tolerance. This does not mean you’re introducing all solids, or full meals, just enough of the allergenic food for multiple exposures.

What about waiting longer than 6 months?

Research shows that waiting longer than around 6 months to start solids may also have some negative side effects. We often hear the phrase “Food before one is just for fun,” but really… it’s for much more than that! Introducing a variety of textures and flavours to babies early on (meaning again: when they show the developmental signs of readiness) is very important for proper development. Starting solids is not just about feeding your baby, it is also about teaching your baby! You may not be ready to let go of the infant phase and embrace this new journey, I know it happens much faster than we want, but here’s why you shouldn’t wait too long to start this next chapter…

Delayed solid introduction increases the risk of iron deficiency in breastfed babies

By around 6 months of age, babies need supplemental iron from food to start replenishing their depleting iron stores. For breastfed babies especially, delaying the introduction of solids can lead to iron deficiency as breastmilk doesn’t contain enough iron to meet their needs. Introducing high iron foods (lentils, eggs, red meat, etc.) twice a day gives babies the supplemental iron they need! 

Waiting to introduce or regularly offer solids can lead to delays in oral motor function

A baby that is introduced to multiple textures early and often is able to develop their jaw strength, chewing technique, the ability to manipulate their food with their tongue, and more feeding related skills. The longer they have been on finger foods and lumpy textures, the more practice they get, and the more practice they get, the stronger and more advanced their oral motor movements become. Remember, practice makes progress!

Waiting will increase the risk of developing an aversion to solid food (especially with a variety of texture)

Waiting to introduce solids also means that your baby isn’t accustomed to having food in their mouth. Therefore, they will be missing out on the sensory experience of food (which can be something us adults forget about!) In addition, their gag reflex will be very strong, causing even more of an aversion to food. Whether they get a lot of that food in or not isn’t the priority. The process of just playing and getting food exposure is incredibly beneficial. There is no room for a “don’t play with your food” rule when you start this process! More playing equals more learning. In fact, research shows that babies who haven’t been introduced to various textures, or lumpy purees, by 9 months are at a greater risk for picky eating and feeding problems at age 7 than those who were fed a lot of variety of textures between 6 and 9 months.

Delaying the introduction of allergenic foods past 6 months increases risk of allergy development

In 2019, the Canadian Pediatric Society updated their guidelines to recommend introducing the common allergens as close to 6 months as possible. This update is based on a revealing study that showed that an earlier introduction of peanuts to high-risk infants helped prevent the development of a peanut allergy. As mentioned above, introduction at 4 months may be the protocol your doctor gives you based on your baby’s allergy risk, but most other babies should be introduced around 6 months, and not much later. I know it can make parents nervous to introduce these foods, but trust me on this one, it is worth it.

All in all, always go by this rule:

Go off of what your baby can DO versus how old they are

The right time might be just after 5 months for some or maybe it’s at 7 months for others. Keep in mind that with preemies or having specific instructions from your doctor due to a medical reason may mean that you start earlier/later. Although, these are exceptions.

And if you’re unsure about how to prepare your baby for solids, what types of food to offer, how to offer them and how to feed in a way to raise an adventurous eater, you need to check out the Baby Led Feeding Online Course! I know first hand that trying to piece together the all the misinformation found on the internet is not only wasting time, but can cause undue stress. For a step-by-step plan with videos, recipes and more, the course will 100% help!


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meet edwena

Registered pediatric dietitian, mom of two and lover of all things related to baby and toddler feeding!


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