Table 4.

Comparison of mean α-tocopherol vitamin content in fresh beef from grass-fed and grain-fed cattle.

	α-tocopherol
Author, year, animal class	Grass-fed (ug/g tissue)	Grain-fed (ug/g tissue)
De la Fuente et al., 2009, Mixed cattle	4.07*	0.75*
Descalzo, et al., 2008, Crossbred steers	3.08*	1.50*
Insani et al., 2007, Crossbred steers	2.1*	0.8*
Descalzo, et al., 2005, Crosbred steers	4.6*	2.2*
Realini et al., 2004, Hereford steers	3.91*	2.92*
Yang et al., 2002, Crossbred steers	4.5*	1.8*

* Indicates a significant difference (at least P < 0.05) between feeding regimens was reported within each respective study.