Dee ihe na-aga n'ihu maka paragraf a - Kellogg malitere ahịa nri ụtụtụ ma webata ihe nrite mbụ na igbe na mmalite 1900s. Quaker Oats batara n'ahịa na Puffed Rice na Wheat Berries nke ọ webatara na 1904 World Fair
A na-eji ikuku na-ekpo ọkụ esi n'otu ọkpọkọ agbanye mkpụrụ ọka ndị a na-amịbeghị amị, ha ana-apụta n'elu ọtụtụ ugboro. A na-ere ha dị ka mgbanwe na sayensị nri. N'afọ ndị 1920, mgbasa ozi mba na magazin na mgbasa ozi redio rụrụ ọrụ dị mkpa n'ịpụta nke nnukwu onye na-emepụta ọka nke anọ, General Mills. N'afọ 1921, James Ford Bell, bụ́ onyeisi ụlọ ọrụ na-egwe ọka wit na Minneapolis, malitere iji ụyọkọ ọka wit e gwere egwe mee nnwale. A na-agbanye ọka wit n'ọkụ, tinye ya n'ekwú ọkụ, gbawaa ya, ma tinye ya sirop, shuga, na nnu. E mechaa, a na-etinye ya n'efere e ji esi nri ma jiri ya na-agbanye ya n'ọkụ eletrik. Ka ọ na-erule 1925, Wheaties aghọọla "Nri ụtụtụ nke ndị mmeri". Na 1928, ụlọ ọrụ na-egwe ọka anọ jikọtara ọnụ dị ka General Mills Company na Minneapolis. Ụlọ ọrụ ọhụrụ ahụ gbasawanyere ahịa nri ndị a na-etinye n'akpa na mgbasa ozi dị arọ, gụnyere nkwado nke ihe omume redio dị ka "Skippy", "Jack Armstrong, The All-American Boy", na egwuregwu baseball. Jack Dempsey, Johnny Weissmuller, na ndị ọzọ kwadoro okwu ahụ bụ́ "Nri ụtụtụ nke ndị mmeri". Ka ọ na-erule 1941, Wheaties enwetawo pasent 12 nke ahịa ọka. Nnyocha ndị e mere banyere otú e si emepụta ọka a na-akpọ Kix, bụ́ ọka a na-eme ka ọka a na-eme ka ọka sie ike, na Cheerios, bụ́ ọka a na-eme ka ọka a na-eme ka ọka sie ike. Ọganihu ngwaahịa na mgbanwe dị iche iche wetara ngụkọta General Mills ahịa karịa $ 500 nde kwa afọ (18% na nri ndị a gbara agba) site na mmalite 1950s. Na 1944 General Foods bidoro mkpọsa ahịa maka mkpụrụ vaịn, na-elekwasị anya na mkpa nri nke nri ụtụtụ.