Omega-3 fatty acid rich food. Chronic low-grade inflammation might trigger nerve damage. Nerve damage might be prevented and arrested by consuming foods that obstruct the activities of pro inflammatory proteins and enzymes. Omega-3 fatty acids are powerful anti-inflammatory substances in our diet.erve damage and Nutritional Deficiency. Nerve damage might even develop owing to deficiency of certain nutrients. Poor diet is not the sole cause of nutritional deficiency. Certain cancers impair absorption of nutrients, leading to severe nutritional deficiency, which might eventually damage the nerve.