Final answer:
During the enrichment of refined grain products, specific vitamins and minerals, such as B vitamins and iron, are added back to the food to replace those lost during processing. While this helps maintain nutritional value, enrichment does not restore fiber or protein. The correct options are 1 and 2.
Step-by-step explanation:
Enrichment refers to the process of adding certain nutrients back to food products, typically refined grains, after they have been lost during processing. The nutrients added during enrichment are primarily vitamins and minerals. These may include B vitamins (such as thiamine, riboflavin, niacin, and folic acid) and minerals like iron.
Processing foods often leads to nutrient losses, and consuming too many refined grains has been associated with health risks like high cholesterol, diabetes, and obesity.
Therefore, enrichment is a method to help maintain nutritional value in the food supply. It's important to understand that while refined grains may be enriched with vitamins and minerals, they typically do not regain the lost fiber or additional protein that is present in their whole grain counterparts.