This variety uses fortified wheat flour and wheat bran.
Times, Sunday Times (2017)
The basal diet consisted of corn, hay, sunflower flour, barley grains, wheat bran and soy flour.
Deniz Alic Ural 2014, 'Efficacy of clinoptilolite supplementation on milk yield and somatic cell count', Revista MVZ Cordoba
Both rhubarb and wheat bran contain phytates, substances that attach themselves to calcium, reducing the amount available to strengthen bones.
Times, Sunday Times (2012)