Five non-nutritional factors to be kept in mind before planning a meal for family are:
Glucosinates present in broccoli,cabbage, radishes and cauliflower prevent the uptake of iodine, causing health complications related to thyroid functions.
Protease inhibitors (Trypsin inhibitors) in soybeans inhibit the actions of trypsin, pepsin and other proteases, hindering complete digestion and absorption of proteins.
Lipase inhibitors found in some algae, soybean and wheat interfere with enzymes, such as human pancreatic lipase, that catalyze the hydrolysis of some lipids.
Phytic acid present in nuts and seeds has a binds to minerals like calcium and iron making them unavailable upon digestion.
Amylase inhibitors found in various beans prevent the action of enzymes that break the glycosidic bonds of starches and other carbohydrates, preventing the release of simple sugars and absorption by the body. The foods containing inhibitors and their respective nutrients should not be consumed together in a meal.