Reese's cups do use real peanut butter made from real peanuts in their Reese's peanut butter cups.
Reese's Peanut Butter Cups are healthy for you when eaten in moderation.
While Reese's Peanut Butter Cups are not considered a healthy snack option and are not considered healthy they do have peanut butter and chocolate which do have some health benefits.
However Reese's Peanut Butter Cups are also high in sugar and fat content which makes them not very healthy so they should be eaten as a treat in moderation and not consumed in excess.
As long as you eat other healthy foods and eat the Reese's Peanut Butter Cups in moderation you can maintain your health.
Eating Reese's Peanut Butter Cups in moderation is not going to harm you but eating too many can contribute to weight gain and other health issues.
The Reese's Peanut Butter Cups are made with real peanut butter which is healthy and the chocolate is healthy.
However the peanut butter by itself and the chocolate by itself would be healthier than it would be eating them in the form of Reese's Peanut Butter Cups.
Just like other candies they should not be eaten in excess and should only be enjoyed in moderation.