Juice Box vs Milk: Which Is the Better Kids Drink?

Nutrition breakdown

A typical juice box carries 13-22g of sugar per serving. Even a 100% juice box has 14g+ of natural fruit sugar with no added sugar, and the AHA still recommends capping juice at 4oz/day for ages 1-3 and 6oz/day for 4-6 — because liquid fruit sugar without the fiber of whole fruit adds up fast. Plain milk has 0g added sugar; the ~12g of total sugar on the label is lactose, which is not counted against the AHA added-sugar limit. Milk also brings 8g of protein and about a quarter of a day's calcium per cup — juice brings essentially neither.

Ingredient comparison

A fruit-punch-style juice box ingredient list often reads: water, high-fructose corn syrup or sugar, juice concentrate, citric acid, natural flavor, and sometimes Red 40 or Blue 1. A 100% juice box is just juice (from concentrate) plus vitamin C — cleaner, but still concentrated fruit sugar. Plain milk is one ingredient: milk (often with added vitamin D). For flavored plant milks, choose unsweetened, which stay at 0g added sugar. The cleanest daily drinks are water and plain milk; juice is best treated as an occasional item within the AHA daily ounce caps.

When to pick each

Pros & cons

Frequently asked questions

Is juice or milk better for kids?

For daily drinking, milk — 0g added sugar, 8g protein, and about a quarter of a day's calcium per cup, and it's the AAP-recommended daily beverage from age 1. Juice (even 100% juice) is concentrated fruit sugar at 13-22g per box with little protein or calcium; the AHA recommends capping it at 4oz/day for ages 1-3 and 6oz for 4-6.

How much sugar is in a typical juice box?

Most juice boxes contain 13-22g of sugar per serving. A 100% juice box still has 14g+ of natural fruit sugar even with 0g added sugar. Fruit-punch styles add sugar or high-fructose corn syrup on top, sometimes with Red 40 or Blue 1 dye.

Is the sugar in milk bad for kids?

No. The ~12g of total sugar in a cup of plain milk is lactose (milk sugar), which is counted separately from added sugar on the nutrition label. Plain milk has 0g added sugar and is fine as a daily drink from age 1. Flavored milks (chocolate, strawberry) add 7-12g of actual added sugar — those are the ones to limit.

What is the best low-sugar drink for a lunchbox?

Water and plain milk are the AAP-preferred daily beverages, both at 0g added sugar. For a shelf-stable flavored option, Hint Kids Water (0g sugar) beats any juice box. If you do pack juice, choose 100% juice and keep it to the AHA daily ounce cap.