Final answer:
Allowing the child to decide portion sizes is a practical application when feeding a child, as it encourages self-regulation of food intake. Water should not be restricted during meals and healthy habits are essential in preventing childhood obesity.
Step-by-step explanation:
Based on research, a practical application that should be followed while feeding a child is to allow the child to decide portion sizes. It is important to encourage healthy eating habits and allowing children to regulate their own food intake can help them learn to listen to their body's hunger cues. Restricting water intake during meals is not recommended as water plays a vital role in the health of the body.
Additionally, to prevent childhood obesity, it is crucial to avoid both feeding children large meals and encouraging fast eating. Instead, focusing on portion control, consuming nutrient-rich foods, and incorporating routine physical activity are fundamental parts of a child's education.