title: Response to Letter to the Editor from Dr. Guilford.
authors: Public Health Sciences and Pharmacology, Penn State University College of Medicine, Hershey, PA, USA, jrichie@psu.edu.
authors: John P
authors: JP
authors: Richie
authors: Joshua
authors: J
authors: Muscat
mesh_terms: D000975:Antioxidants / Q000008:administration & dosage*; D019587:Dietary Supplements; D005260:Female; D005978:Glutathione / Q000008:administration & dosage*; D006801:Humans; D007155:Immunologic Factors / Q000008:administration & dosage*; D007408:Intestinal Absorption; D007694:Killer Cells, Natural / Q000276:immunology*; D008297:Male; D018384:Oxidative Stress
chemical_list: D000975:Antioxidants; D007155:Immunologic Factors; D005978:Glutathione