Final answer:
Vitamin enrichment and fortification are practices that improve the nutritional value of foods and enhance vitamin intake.
Step-by-step explanation:
The true statements about vitamin enrichment and fortification are:
- Nutritional yeast that has thiamin, riboflavin, niacin, folate, and vitamin B-12 added is an example of a fortified food. This means that the nutritional yeast has had these vitamins added to it to increase its nutritional value.
- Vitamin A and D added to milk is an example of a vitamin-infused food. This means that vitamin A and D have been added to the milk to enhance its nutritional content.
- Vitamin fortification and enrichment of foods have improved vitamin intakes of Americans. These practices have resulted in increased access to essential vitamins for Americans, improving their overall vitamin intake.