A food dietary supplement for alleviating premenstrual syndrome in women has earned biche-food company PMS Mood Food, Inc. US patent 6174542. Both inventors are female: Deborah Hinton and Jeri Greene. Other entities active in this field are Internutria, Sabina International, Energetics,  Internutria, Bio-Virus Research Incorporated, and Tufts University School of Medicine.