Healthy Hydration for Kids

Is plain milk OK for kids?

Written from AAP, federal and National Academies guidance and checked against each source. Medical review by a pediatric registered dietitian is in progress. Updated November 2026.

Best choice overall

Quick answer

Yes, from age 1. Plain milk and water are the two drinks kids need. Whole milk from 12 months, then skim or 1% from age 2.1

Pick your child's age for a personal answer

By age

AgeVerdictDetails
Under 12 monthsSkipNot yet. Breast milk or formula until age 1.1
1 to 4 yearsBest choice12 to 24 months: 2 to 3 cups of whole milk. Ages 2 to 3: up to 2 cups of skim or 1%. Ages 4 to 5: up to 2½ cups.1
5 to 10 yearsOKFine, plain, as one of the day's drinks alongside water.
11 to 18 yearsOKFine, plain, alongside water.

How much sugar?

Dashed line: the American Heart Association limit of 25 g of added sugar for the whole day, ages 2 to 18. Typical amounts, rounded. Brands vary.

  • Plain milk, 8 oz (natural milk sugar)12 g, none added

Good to know

  • The sugar in plain milk is natural milk sugar, and it comes with protein and calcium.
  • Too much milk can crowd out iron-rich foods in toddlers. If your toddler drinks a lot more than the amounts above, ask your pediatrician.
  • Serve milk with meals and water between them.

Try instead

Want flavor? Cold plain milk in a special cup, with strawberries on the side, works better than you'd expect.

Have the bottle in your hand? Check it with the label checker.

Common questions

Which milk should my toddler drink?

Whole milk from 12 to 24 months, then skim or 1% from age 2. Plain only, no flavored.

How much milk is too much?

For ages 1 to 3 the guidance tops out at 2 to 3 cups a day. Past that, milk can fill kids up so they eat less of other foods.

Related

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