So imagine you are at a party and your parents tell you that you cannot have any cake. That is what a food prohibition is - when someone is not allowed to have a certain type of food or drink.
Now, there are many reasons why someone might have food or drink prohibitions. Some people might have allergies to certain foods or drinks, and if they consume them, they might get sick. So, they have to avoid these foods and drinks to keep themselves safe.
Others might have religious or cultural reasons for food and drink prohibitions. For example, some people might not eat pork because their religion prohibits it. Some cultures might not drink alcohol because it is not part of their tradition or considered taboo.
There might also be medical reasons for food and drink prohibitions. For example, a doctor might tell someone to avoid sugary drinks because they have diabetes.
It is important to respect people's food and drink prohibitions. If someone tells you that they cannot have certain foods or drinks, you should not pressure them to try it. Everyone has their own reasons for their food and drink choices, and it is important to understand and respect them.