Final answer:
A vegetarian who excludes all animal foods except dairy products is referred to as a lacto-vegetarian. They must consume a variety of plant-based foods to ensure they get complete proteins needed for cellular growth.
Step-by-step explanation:
A vegetarian who restricts all animal foods except dairy is referred to as a lacto-vegetarian. This type of diet excludes meat, poultry, fish, and eggs but includes dairy products such as milk, cheese, and yogurt. Lacto-vegetarians need to ensure they get enough protein, which is essential for cell growth and repair. Even though individual plant foods may not contain all essential amino acids, vegetarians can achieve a complete protein intake by consuming a variety of plant-based foods throughout the day. Foods like beans, lentils, grains, nuts, seeds, and dairy can conclusively provide all necessary amino acids when consumed in a well-planned diet. It is important for vegetarians, especially those who exclude multiple food groups, to be mindful of obtaining adequate nutrients and may require consulting a nutrition expert to avoid deficiencies.