U.S. doctors online nowAsk doctors free
A 35-year-old member asked:

Do prenatal vitamins cause weight gain?

2 doctor answers3 doctors weighed in
Dr. Robert Kwok
Pediatrics 34 years experience
No: Prenatal vitamin tablets or capsules have almost no calories, so they do not cause weight gain. Children's gummy vitamins, if taken at "adult" doses, could add 40-80 calories a day to a person's total daily caloric intake. Some "vitamin" beverages have a lot of calories.
Dr. John Scott
Bariatrics 21 years experience
Prenatal vitamins: No. My bariatric patients are on high doses of vitamins that are similar to pre-natal vitamins and it has not been proven that vitamins affect weight loss or weight gain.
Last updated Nov 15, 2018
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.