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How Many Ounces of Milk Should a 7 Month Old Baby Have a Day?

By Michelle Hogan ; Updated April 18, 2017
Babies should receive 2 to 3 ounces of formula a day for each pound of body weight.

Ounces to Weight Ratio

A baby should consume 2 to 3 ounces of formula per day for every pound of body weight.

A general rule of thumb is that a baby should consume 2 to 3 ounce of formula per day for every pound of body weight. So an 18-pound 7-month-old baby should receive about 36 ounces of formula per day. More if she is not yet eating solid food. Breastfed babies should wet 4 to 6 diapers everyday, indicating they are getting enough milk.

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Solid Foods

A baby that eats solid food may drink less formula.

Babies start to experiment with solid foods between 4 and 6 months and begin to eat them at every meal after 6 months, depending on the interest of the baby. A 7-month-old who is eating cereals, fruits and veggies at every meal may decrease the amount of formula she drinks, but increase the amount of water. A 7-month-old should always have the appropriate amount of formula per her weight available to her each day.

Bottom Line

Check with a doctor if you have concerns about your baby.

A 7-month-old baby who is gaining weight consistently, eating and drinking well, wetting 4 to 6 diapers a day and having a bowel movement once or twice a day is likely getting enough formula to drink. Check with your doctor if you have concerns.

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About the Author

Michelle Hogan is a writer and the author of 13 books including the 2005 bestselling memoir, "Without a Net: Middle Class and Homeless (With Kids) in America." Hogan studied English at American University and has been writing professionally since 1998. Her work has appeared in "The New York Times," "Redbook," "Family Circle" and many other publications.

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