 Besides being an early prominent advocator of the low-carbohydrate diet as "one of the leading experts on dieting", according to "" (1966), he was also a pioneer in the study of the restless legs syndrome in 1953, treating patients by injection of iron according to his casual theory attributed to iron deficiency.Nils Brage Nordlander was active in the establishment of the along with his wife Brita Nordlander, to which he also became an important donor.Besides his medical research, he was also a frequent contributor to the debate in daily newspapers such as "Upsala Nya Tidning" in his role as politician, including serving as president of the county council of Uppsala, representing the Swedish People's Party, the predecessor of the Liberals.