What are some everyday life materials that contain nitrogen

- - plant food / farm fertilizer

- - household ammonia cleaner

- - rocket fuel

- - any food with protein in it

- - any part of your body

- - nitroglycerine / other explosives

Foods that are rich in nitrogen include meat, fish, potato, milk, eggs, cereals and legumes. Most of the nitrogen in foods are found in proteins as amino acids, although nitrogen can also be present in various forms such as freeamino acids, creatine, choline, creatinine, purines, pyrimidines and amino sugars.