What type of deficiency arises when a product is not utilized properly in the body?

A secondary deficiency occurs when a product, such as a nutrient, is not effectively utilized by the body despite its presence. This can happen due to various factors like an underlying health issue, genetic factors, or interactions with other substances that affect absorption or metabolism. For example, an individual may consume enough of a vitamin, but if their gastrointestinal tract cannot absorb it properly due to a medical condition, they can develop symptoms of deficiency.

This term is significant in the study of nutrition and health, as it highlights the importance of not just the availability of nutrients but also the body's ability to utilize them effectively. Understanding secondary deficiencies helps professionals identify underlying issues that may be causing symptoms and reinforces the idea that just having sufficient intake does not guarantee proper function and health.