Do you have Skinny babys? 3 Reasons Behind It

Skinny babys are no fun unless you’re talking about a pair of jeans. Stress and poor nutrition are common reasons why babies don’t gain weight as expected.

If your little one is too skinny for their age, try increasing the number of meals they have during the day, adding healthy snacks in between meals, and having nutritious meals that are full of proteins and fats.

Do you have Skinny babys?

It is normal for babies to have different body shapes and sizes. A baby’s weight and growth should be monitored by a healthcare provider to ensure they are within a healthy range. If a baby appears to be underweight or not gaining weight, it is important to seek medical advice.

With proper nutrition and plenty of love, you’ll have that chubby baby back in no time.

Skinny babys

What Is Ideal Weight For A Baby?

The World Health Organization’s regulating body recommends that a baby weigh approximately 7 to 7.5 pounds (approximately 3.2 kg to 3.4 kg). 

The simplest method to discover the reason is to take him to a doctor, who can examine if his growth curve corresponds with those published by the CDC.

The growth charts are sized to fit children of all ages, although they begin at approximately two years old.

It also determines the body mass index (BMI) for children ages two and up. If the BMI is lower than the fifth percentile, it means that your child is underweight.

Do you have Skinny babys?

Several variables influence a baby’s weight throughout the first two years. 

1. Genetics

This is something that’s out of the parents’ control as it’s mostly the mishmash of genes that combine and create a wonderful little human, and these genes will determine the speed of his metabolism.

Genetics also has a role in moving the anticipated period when developmental milestones are expected to occur, which can influence when your child transitions to solid foods and how much weight he gains.

2. The Distinction Between Formula-Fed And Breast-Fed Infants Is Significant

Breastfeeding may result in mild underweighting in children who are exclusively fed on breast milk. The most common reasons are an imbalance of foremilk and hindmilk, supply problems, or the mother’s nutrition.

There’s also the possibility of infantile lactose intolerance, which might make weight gain more difficult. A bottle-fed newborn, on the other hand, will have a set feeding schedule, especially before sleep. Because of this, you’ll have to increase their diet.

3. Low Birth Weight

A child’s birth weight sets the tone for how his first two years may go in terms of weight.

So, if a newborn is born with low birth weight and no other issues, such as being delivered prematurely or having another condition, he will generally stay that way for an extended period.

Other Things That Can Lead To Malnutrition And Development Issues


The condition makes them irritable and unwilling to eat. You may notice your baby crying while feeding since some of the stomach contents are pushed back up the esophagus. This leads to an unpleasant burning sensation in the stomach (due to the gastric acid) that may even make the infant refuse food.

2. Celiac Disease

Another, more severe problem that may occur is celiac disease. It’s an allergy to gluten, which is a common ingredient in a variety of foods on the market and is essentially everyone’s diet.

3. Any Type Of Severe Health Problem Or Heart Disease

A child’s diet and overall appetite can be negatively affected by cerebral palsy, diabetes, various kinds of heart disease, cystic fibrosis, and other conditions. This can lead to difficulties with eating food as a result of the aforementioned disorders.

Skinny Babies Vs Fat Babies – How Do I Know That My Kid Is Healthy?

1. Your Child Has Baby Rolls

You may relax if you notice that your healthy baby has those rolls of baby fat that make him look like a fluffy little loaf of bread. He has enough weight, and he’s developing appropriately.

2. Regular Wet Poops

If your child’s bowel movements are normal and he has around a half-dozen wet and dirty diapers every day, you can rest confident that he is consuming adequate calories (as long as it isn’t diarrhea).

3. Your Child Is Hitting All The Developmental Milestones

Several developmental milestones occur during your child’s first two years of life that are an excellent way to see how things are going.

It also means that if his emotional range is expanding, everything appears to be going according to plan.

The same may be said for his continuous maturation of motor skills, such as the ability to turn over or develop his thinking.

Signs Of Underfed Baby

Is your baby’s low weight a concern, and are you wondering, is my baby too skinny? Then look out for the following signs to know if your baby is underfed.

  • An underfed baby is grumpy most of the time and rarely smiles.
  • He demands constant attention. He gets upset when he’s put down.
  • He could become constipated if he was fed with excess formula.
  • You can’t tell whether or not he’s making progress because he generally stays in your arms except when sleeping.

A malnourished newborn is a feeble kid. His body will try to save as much energy as possible. The following are some of the indications that a baby is severely malnourished:

  • He doesn’t exhibit signs of hunger and rarely demands food. His sucking is faint.
  • He frequently falls asleep before finishing feedings. He’s lethargic and uninterested during feeding gaps.
  • He sleeps for long periods. Feeding him is difficult, and he must be woken up.
  • He has fewer than four wet diapers a day, whether all of his meals are supplemented with formula.

What Can You Do To Help Skinny Baby In Gaining Weight?

1. Increase Feeding Frequency

A few doses of baby formula in between nursing can be a great option for moms who breastfeed their children frequently but cannot keep up with the required demand due to a lack of supply.

2. Have More Variety Of Food To Offer

The food itself might be the issue; maybe it’s bland or has an unpleasant texture. As a result, your infant may gain weight gradually.

The greatest remedy here is to add more variety to your baby’s diet, which doctors will frequently recommend.

When To Call A Doctor?

It’s typical for babies to be fussy or irritable at first, but when something goes wrong, it can be a sign of a much more serious underlying health problem. However, many critical illnesses may be prevented if you receive appropriate medical care on time.

As a result, it’s critical to always consult your child’s pediatrician about these concerns since they’ll be the most knowledgeable on the subject. 

Frequently Asked Questions

Q1: Is it normal for babies to be skinny?

Ans: You don’t need to worry if they’re meeting developmental milestones, are alert and energetic, and are feeding well as long as they’re doing so.

Q2: Do skinny babies become skinny adults?

Ans: Even if large infants are at a higher risk of becoming overweight adults, Washington notes that this does not imply that a thin infant will grow into a skinny adult or that a fat infant will develop into a fat adult.

Q3: When to worry about baby’s weight?

Ans: If your newborn doesn’t regain its birth weight within ten to fourteen days after delivery, you may have a problem with excessive weight gain. Your baby should weigh at least an ounce every day till they are three months old. Your infant should gain less than 0.67 ounces per day between the ages of 3 and 6 months.

Q4: Why 1 year old is skinny?

Ans: Your toddler may become underweight for a variety of reasons. However, if he’s eating more than usual and is still gaining weight, it’s more likely that he’s just burning off more calories than he consumes each day, especially if he has a lengthy period of fussy eating.

Q5: Are breastfed babies smaller?

Ans: Breastfeeding babies between the ages of six and twelve months generally weigh less than formula-fed children.

Q6: How can I fatten up my breastfed baby?

Ans: Sleep near your baby to increase prolactin and nursing frequency. The practice of baby massage is backed by research, which has been shown to enhance digestion and weight gain in babies.

Q7: What can I eat to help my breastfed baby gain weight?

Ans: Every day, consume two servings of fruit and three meals, each of which contains 1.5-2 teaspoons (tbsp) or 6 grams of protein per meal.

Q8: What is a genetically lean baby? Are skinny babies unhealthy?

Ans: Genetically lean babies have a family history of being thin. They’re usually born with long, slender limbs and small frames. Although they may not be as chubby as other babies, they’re just as healthy.

Q9: I have an underweight baby who is now 2 months old. Is it normal that the baby feels lighter in weight?

Ans: If your baby is underweight, you may notice that they feel lighter in weight than other babies their age. Your baby will likely gain weight gradually as they grow and develop.

Q10: My newborn has skinny legs. What should I do?

Ans:  If your newborn has skinny legs, you don’t need to worry. This is normal and they will likely fill it out as they grow and develop.


Still thinking, is my baby too skinny? There is no need to worry about it. As long as your baby’s development is proceeding on schedule, is alert and energetic, and is feeding adequately, he/she’ll be fine. If your baby is underweight, you may notice that they feel lighter in weight than other babies their age. Skinny babys will likely gain weight gradually as they grow and develop.

My name is Mark Joseph, and I’m on a mission to help new parents navigate the world of parenting. With over 5 years of experience as a parenting coach, I’m here to provide you with insight into all aspects of pregnancy, childbirth, and raising your newborn baby. Instagram Linkedln Facebook

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