Final answer:
Sulfites can destroy thiamine, also known as vitamin B1, in foods preserved with sulfites. Thiamine is a crucial nutrient important for energy metabolism and the functioning of the nervous system.
Step-by-step explanation:
The vitamin that is destroyed in foods preserved with sulfites is thiamine, which is also known as vitamin B1. Sulfites are commonly used as a chemical preservative to prevent browning and oxidation of foods, such as dried fruits. However, sulfites can degrade thiamine, which is an important nutrient in some foods. Thiamine plays a crucial role in energy metabolism and the functioning of the nervous system.