It's ok if it's in moderation.
Nuts are generally high in fats and carbs and easily stored as fat. Try to only have peas/corn, carrots and other starchy veggies 3 times a week. Good luck and remember to keep your water intake up. 2 litres a day is recommended. The first few kilos you will loose easily as it's mainly fluid retention/bloating....
It's actually not as simplistic as that.