Nutty Bars and Nutty Buddy are the same thing.
There's no difference between Nutty Bars and Nutty Buddy other than the name as Little Debbie snack food company just changed the name of Nutty Bars to Nutty Buddy.
They are the exact same thing and no difference at all between them.
Nutty Buddies can be good for you in moderation and they are okay as a once in awhile snack.
But eating too many Nutty Buddies can be bad for your health as Nutty Buddies contain high amounts of sugar, saturated fats, trans fats, and the additives TBHQ, soy lecithin, glycerides, and artificial flavors.
There's no really nutritional value to Nutty Bars and Nutty Bars are considered Junk Food.
But it's okay to eat Nutty Buddies or other Junk Food snacks as a treat once in awhile as long as you're eating healthier foods and staying active, and getting plenty of exercise.
Having a few Nutty Buddies per day is usually not really that bad for your health but if you eat a few boxes of Nutty Buddies everyday then you could get unhealthy.
The Nutty Buddies can increase your weight which can lead to heart disease, heart attacks, strokes etc.
I eat a few Nutty Buddies nearly everyday as an in between snack before meals and I'm okay and have good health but I also eat other healthy foods and get plenty of exercise as well.