Questions: Ingested nutrients spend at least hours in the small intestine as chemical digestion and absorption are completed.

Ingested nutrients spend at least 3 to 5 hours in the small intestine as chemical digestion and absorption are completed.

Explanation: The small intestine is a crucial part of the digestive system where most of the digestion and absorption of nutrients occur. The time it takes for food to pass through the small intestine can vary depending on several factors, including the type of food ingested and individual digestive health. However, on average, it takes about 3 to 5 hours for ingested nutrients to move through the small intestine.