I've always been curious about going on a ketogenic diet, but with all the new trends I don't know if it is worth it.
There is actually some evidence that adults with epilepsy may benefit from the diet. Also, I know several people who have lost weight with it.
What types of foods are you allowed to eat while on a keto diet?
You have to eat foods that are high in fat, and low in carbohydrates. And make sure you get adequate protein.
That doesn't sound too difficult. Are there any other benefits to this type of diet compared to others, like the Atkins diet?
It's proven to be effective at reducing the frequency of epileptic seizures by elevating the level of ketone bodies.
You know, I think I have a distant relative who suffers from seizures. I wonder if she's talked to her doctor about this diet. I'll have to mention it to her. 
You should, almost half of children and young people who tried this diet saw their seizures drop by at least half, and the effect continues even after you stop the diet!