What is the recommended daily water intake for a 10-month-old infant?

Water Intake Recommendations for a 10-Month-Old Infant

For a 10-month-old infant, plain water intake should be limited to 100-200 mL (approximately 4-8 ounces) per day, with breast milk or formula remaining the primary source of hydration. 1

Primary Hydration Sources for Infants

• Breast milk or formula: Should remain the primary source of hydration and nutrition for infants under 12 months

  • Breast milk or formula provides sufficient hydration for most infants 2
  • Recommended intake is typically 600-800 mL per day at this age 1

• Plain water: Should be introduced in limited amounts

  • Can be offered in a cup (not bottle) after 6 months of age
  • Should not replace breast milk or formula feedings
  • Should not be given before 6 months of age due to risk of water intoxication 3

Water Intake Guidelines by Age

The American Academy of Pediatrics provides clear guidance on water intake for infants:

1. 0-6 months: No plain water needed; breast milk or formula provides adequate hydration
2. 6-12 months: Small amounts of water (100-200 mL/day) can be introduced in a cup
3. 12-24 months: Water intake can increase gradually as milk intake decreases

Risks of Excessive Water Intake

Offering too much water to a 10-month-old can lead to several problems:

• Decreased nutrition: Fills the stomach and reduces intake of nutrient-rich breast milk or formula
• Water intoxication: Can lead to electrolyte imbalance and hyponatremia
• Malnutrition: Excessive water consumption may be associated with both overnutrition and undernutrition 1

Appropriate Water Offering Practices

• Offer water in an open cup or sippy cup, not a bottle
• Provide small amounts of water with meals as the infant is learning to eat solid foods
• Do not give water at bedtime or throughout the day in easily transportable cups 1
• Ensure water is clean and safe for consumption

Signs of Adequate Hydration

Monitor these indicators to ensure your 10-month-old is properly hydrated:

• 6-8 wet diapers per day
• Pale yellow urine
• Moist mucous membranes
• Normal skin turgor
• Alert and active behavior

Special Considerations

• Hot weather: Even in hot weather, exclusively breastfed babies do not require additional water 3
• Illness: During mild illness, continue breast milk or formula; for diarrhea or vomiting, consult a healthcare provider about oral rehydration solutions
• Solid foods: As solid foods are introduced, some water (100-200 mL/day) can help with digestion, but should not replace milk feedings

Remember that breast milk or formula should remain the primary source of hydration for infants under 12 months of age, with water serving as a supplementary fluid in limited amounts.