From the Guidelines
An 8-month-old baby weighing 20 pounds should drink about 16-24 ounces (480-720 ml) of water per day, including the water content in breast milk or formula, with plain water making up a small portion of this total, typically around 4-8 ounces (120-240 ml) per day. This recommendation is based on the most recent and highest quality study available, which emphasizes the importance of hydration in infants while also considering the potential risks of excessive water intake 1. The study highlights the need for a balanced approach to hydration, taking into account the baby's overall diet and activity level. Key points to consider include:
- Most of a baby's hydration needs should still come from breast milk or formula at this age, with approximately 24-32 ounces (720-960 ml) daily.
- Water intake is important for hydration, but excessive amounts can fill the baby's small stomach and reduce their intake of nutrient-rich breast milk or formula.
- Additionally, too much water can potentially disrupt electrolyte balance in infants.
- Signs of good hydration in infants include 6-8 wet diapers daily, tears when crying, and moist mouth and lips.
- In hot weather or if the baby has a fever, slightly more water may be needed, but it is essential to consult a pediatrician if there are concerns about hydration. It is also important to note that the American Academy of Pediatrics recommends breastfeeding as the primary source of nutrition for infants, and formula should only be used if breastfeeding is not possible 1. The ESPGHAN/ESPE/NESPGHAN guidelines on pediatric parenteral nutrition also provide valuable insights into fluid and electrolyte balance in pediatric patients, highlighting the importance of considering individual needs and circumstances 1. However, the most relevant and recent guidance for this specific question comes from the study published in Current Obesity Reports 1.
From the Research
Daily Water Intake for Infants
There is no direct evidence in the provided studies to determine the recommended daily water intake for an 8-month-old infant weighing 20 pounds (9 kilograms).
Relevant Information
- The studies provided focus on oral rehydration solutions for infants with dehydration caused by acute diarrhea 2, 3, 4 and cases of foodborne botulism or kwashiorkor in infants 5, 6.
- None of the studies provide information on the daily water intake recommendations for healthy infants.
- It is essential to consult a pediatrician or a trusted healthcare professional for personalized advice on infant care and nutrition.
Key Findings
- The provided studies do not offer any insights into the daily water intake for an 8-month-old infant.
- Infants' nutritional needs are best met through breast milk or formula, and solid foods should be introduced gradually 5, 6.
- Parents and caregivers should be cautious of homemade formulas or unorthodox diets that may not meet the nutritional standards for infants 6.