Watermelon is a refreshing and hydrating fruit that many enjoy during the hot summer months. However, it's important to understand how much of this delicious fruit is safe for both adults and children to consume. The guidelines suggest that while watermelon is generally healthy and low in calories, moderation is key. Adults can enjoy up to 1/4 of a medium-sized watermelon daily, which equals approximately 400 to 500 grams. For children, the recommended amount varies by age; toddlers can safely eat about 150 grams, while older children can have up to 300 grams. Watermelon's high water content makes it an excellent choice for hydration, but overconsumption can lead to digestive discomfort. Always consider individual dietary needs and consult with a healthcare professional for personalized advice.