What factor is NOT typically assessed in an infant's nutritional history?

The factor that is not typically assessed in an infant's nutritional history is the type of teething toys used. When evaluating an infant's nutritional history, healthcare providers focus on elements directly related to nutrition and feeding.

Assessing feeding history milestones helps determine whether the infant is reaching appropriate developmental stages related to feeding, such as the introduction of solid foods and the ability to self-feed. The social and economic background is also important, as it can influence access to nutritious foods and overall dietary practices. Additionally, stooling consistency and frequency can provide insights into the infant’s tolerance of different foods and overall digestive health, which are related to nutrition.

In contrast, teething toys, while relevant to a child's oral development, do not provide meaningful information about the infant's nutritional status or dietary habits. Therefore, this aspect is not considered a critical component of the nutritional assessment.