On keto, milk servings stay small; most people cap dairy milk at 1/4–1/2 cup per day to fit the carb budget.

For daily calcium, most adults need about 2–3 cups of dairy or fortified milk, plus other foods to reach 1,000–1,200 mg.

During pregnancy, more than 3–4 cups of milk a day is usually too much; most people do well with 2–3 cups within a balanced plan.

During pregnancy, a practical milk target is 2–3 cups a day, choosing pasteurized or fortified options for calcium and vitamin D.

Most infants need about 24–32 oz (710–946 mL) of milk daily in the first year, with feeds adjusted for age, weight, and cues.

Most adults do well with 1–3 cup-equivalents of dairy each day; set the amount by your calories, protein needs, and calcium targets.

For daily milk intake for adults, 1 to 3 cups (240–720 mL) fits most diets, guided by total dairy targets and personal needs.

Teens typically need about 3 cups of dairy equivalents daily—milk or fortified soy—to meet calcium and vitamin D goals.

For a 12-year-old, plan about 3 cup-equivalents of dairy per day, with 1–2 cups from milk and the rest from yogurt or cheese.