Because nuts like pecans do not contain any purines, it is highly unlikely that eating them could cause problems with gout. Purines are the primary contributing factor to the development of gout, so you will definitely want to make sure to avoid foods that contain lots of them. Fruits, vegetables, dairy products, and nuts are healthy and acceptable to eat for those who have problems with gout.
If you currently have gout you will want to know which foods will aggravate this condition and which ones will not. The more you know about foods that cause purines the better, because the last thing you will want is to aggravate your condition even more.