Newborn Baby’s Weight: Can the Mother’s Weight and Diet Affect It?


Most pregnant women worry about the size of their baby, whether the baby will be big, normal or small!

Generally, no woman wants to give birth to a 10-pound baby or a very low birth weight baby.

The major concerns are

  1. Will the weight of the mother affect the size/ weight of the baby?
  2. Will diet a pregnant woman is on affect the size and weight of the baby?
  3. Will the family history of the pregnant woman affect the size and weight of the baby?
  4. Most pregnant women will be wondering if there are any dietary changes they can make to have an average-size baby.


  1. Yes, a woman’s diet can/ might have some effect on the size of her new born baby, however the mechanism for this effect is not fully understood. There are other factors typically are at play in the case of large babies.
  2. From current research, they opined that, the more weight you gain and also the larger you grow throughout your pregnancy, the larger your baby likely will be, according to the Children’s Hospital of Boston.
  3. Many studies have shown that mothers who are [of a higher weight] at the start of their pregnancy have babies who are more likely to be heavier—but is it not clear whether the mother being [heavier] causes her baby to be bigger at birth
  4. Also, the size of your newborn can be determined by familial traits. So, if your parents are large, and you are also large together with your partner, then your chances of having a large baby are greater.
  5. So, here is the deal, in order to avoid a very large or small bay, you MUST ensure you monitor your weight gain throughout your pregnancy.
  6. Generally, the Institute of Medicine has determined that if you were underweight before getting pregnant, you should gain 28 to 40 pounds throughout the course of your pregnancy.
  7. However, if you were average weight, you should gain 25 to 35 pounds.
  8. If you were overweight, you need to gain 15 to 25 pounds in the coming months.
  9. Finally, if you were obese before becoming pregnant, you should gain 11 to 20 pounds while pregnant.
  10. Generally, it is VERY important to observe these weight gain goals, so you will optimize your chances of having a happy and healthy bundle of joy.
  11. The more you eat, the more weight YOU will gain however if your weight goes up too much or you are eating foods high in sugar and carbohydrates sometimes (in some cases and Im not saying this will happen to you) leads to gestational diabetes and an increase in your blood glucose which your baby will absorb and that will make your baby grow bigger and put you at risk of having to deliver early.
  12. Factually, being overweightor obese in pregnancy does cause babies to be born larger, and so does having higher blood sugar, which can lead to gestational diabetes

Recommendations/ Advice

When you are pregnant, the watch word is moderation and adequate diet. Please make sure you maintain a healthy weight.  And if prior to becoming pregnant, you’re overweight or obese, please talk to your doctor about how best to manage your weight in order to keep your baby’s size on target.

Please, REMEMBER, in Pregnancy, YOU MUST EAT RIGHT, SO THAT YOUR BABY WILL GET ADEQUATE DIET AND ALL THE NUTRIENT TO DEVELOP PROPERLY. Pregnancy is not a time for dieting, but your doctor can give you strategies for healthy eating and moderate exercise that can help ensure a healthy birth weight for your baby.

PLEASE DO NOT EMBARK ON ANY WEIGHT LOSS JOURNEY DURING PREGNANY! BEWARE! Make sure you attend all routine prenatal checkups, which include checking blood pressure and glucose.

Finally, note that “A healthy birth weight reflects how well the baby has grown and developed in the womb,” according to expert.


Thank You

Dr. Chudi Godsons

References & Photo Credit



Mayo Clinic



Please enter your comment!
Please enter your name here