Some foods may be harmful.
It's useful because if this certain food has something that doesn't agree wit h the animal and he goes to eat it, it can cause an allergic reaction or maybe even poison it
Different foods contain different elements useful for the animal's development.
Here is a useful website. Your cat can eat some of certain foods. Check out the website for a list of foods to avoid and foods that can be fine.http://petdoc.com/story/can-cats-eat-human-foods
Yes, because you are learning about that place's culture by observing the food. The food may have a certain style to it that is unique to that place only and you may learn more about a place's culture by learning about its food.
You wouldnt' only by eating certain foods and not eating certain foods.
It is used in the freeze drying process, which allows certain foods to be stored in a dry state for a long time.
There are some who claim that food type affects your ability to digest certain foods and change how your body reacts to those foods. According to Dr. Peter D'Adamo's Blood Type Diet, people with Type A blood will have more difficulty digesting animal proteins and fats.
Fungi is useful to use in the making of foods and drinks such as bread and beer, are fungi.
There isn't one generic plant and generic animal that lives everywhere on Earth because every plant and animal requires a certain environment that provides certain temperatures,foods,climates,etc. and not every place on Earth can provide those things.
they didn't always bring certain foods but certain INGREDIENTS. they brought them because it refglects their culture and how they live.
Most natural, unprocessed foods - both plant based and animal based - contain various minerals in varying quantities. Certain processed foods may be enriched with artificially added minerals. For example, calcium is often added to orange juice.
Anyone with special dietary requirements such as people who can't eat certain foods e.g. allergies/intolerances, people who choose not to eat certain foods e.g. vegetarians and people who need to eat certain foods e.g. diabetics.