Well actually if you are ready to increase your carbs you can buy natural peanut butter at almost every supermarket or health food store with no sugar added.

But peanuts are a higher carb nut so just consider macadamian nuts, pecans, walnuts or almonds that have much more fiber making them lower carb.

Also, this is an experiement also, because nuts do stall some people so keep that in mind.

All the best to you.