The key answer of exercise 22

It is important to eat a variety of foods, but there is a growing number of people with intolerances and allergies. Some people don't eat any food from animals. They eat no eggs, milk or honey. A lot of people eat pre-prepared food because they don't have much time. But these foods are not very healthy. It is also important to observe a few simple hygiene rules in the kitchen. The effects of food poisoning are terrible.