Following food may be of help in reducing symptoms of Bell's Palsy. 1  Food containing enough vitamins and minerals are helpful in minimizing the complications of Bell's Palsy. 2  Eat less of Arginine-rich food like walnuts, hazelnuts and brazil nuts, sesame seeds, pumpkin seeds, etc. 3  Avoid foods which cause allergies. Common foods which cause allergies in some individuals are eggs, soya, nuts, wheat, corn, etc. Avoid foods containing preservatives and artificial colors. Avoid refined food such as white breads, pastas, sugar, fried food, doughnuts, pastries, bread, candy and soft drinks, etc. Avoid coffee, alcohol and smoking.