Flour is the finely ground powder of grains, seeds or roots. It is usually white or whitish in colour, but depending on the ground material, grey or brownish hues are not uncommon.
Flour contains some Vitamin B1 and B3. However, as the vitamins are degraded somewhat in processing, flour contains significantly lower levels of vitamins than the grains from which the flour is made.
- Askew, G. & Paquette, J. (2007) (in english). Secrets of Supplements (1st ed.). PhyteMedia. p. 19-20, 137-138. ISBN 978-0-9784290-0-3. http://www.phytemedia.com.
- Martin Kreutzer (january 13th, 2009). "NetDoktor om B12-vitamin" (in danish). netdoktor.dk. http://www.netdoktor.dk/vitaminer/vitaminb12.htm. Retrieved June 8th, 2015.