Holiday Foods, Day 13, Pecans! Pecans often show up in tarts, pies, nut mixes, and various chocolate treats. Thanks to their proanthocianidins, they are a very useful nut to add to your holiday festivities this year. But pay attention to allergy-sufferers or those who may have sensitivities to nuts. My adult son developed a harsh sensitivity to Pecans and he had to avoid them for a couple years. He accidentally ate a pecan chocolate the other day with no ill effects, Praise the Lord! So the rest period may have been what his body needed. Pecans are not recommended for infants.