Nutrition plays an important role in the development of adequate immune response and poor nutrition, either too little food or too much food or poorly balanced nutrition, can lead to a wide array of health problems.

Drug treatments which have been developed and tested only on males may not have the same effectiveness when used by women due to significant genetic differences between genders in drug absorption and pathways of metabolism. It is therefore of great importance to provide testing in the entire population before releasing drugs for general use.