What it is: 

A way of eating that does not include anything with dairy or dairy products in it.

Why you'd want to eat this way: 

If you are lactose intolerant

If you have a dairy allergy

If you are sensitive to dairy

Many people with chronic conditions or autoimmune conditions feel better dairy-free

Some people lose weight more easily going diary-free

Some people with skin conditions or inflammation problems do much better going dairy-free

What's allowed: 

Anything that does not contain dairy or dairy products (milk or milk products)

What's NOT allowed: 

Milk

Cheese

Yogurt

Cream

Half and Half

Ice cream

Anything processed that contains dairy

*It's pretty difficult to be dairy-free, but if you're out shopping or eating, you would look for 'vegan' options since vegans do not eat dairy.