Anti nutritional effects of foods

Last time I have written about food allergies and their symptoms. Now I ll tell you that there is some  anti nutritional factors naturally present in the food like protease inhibitors- soybean ...studies shown that food rich in protease inhibitors may lower the pancreatic cancer. Protease inhibitors are deactivated by heat
The other anti nutritional factor in food is :
Saponins - present inherbs and spices e.g fenugreek, nutmeg, thyme, ginseg etc. Saponins: It can reduce the oxygen carrying capacity. It can break the red blood cells. Its having beneficial effects like it contains some anti - carcinogens and reduce the tumor growth.