The chemical reactions and pathways resulting in the formation of any of the vitamin A compounds, retinol, retinal (retinaldehyde) and retinoic acid. Animals cannot synthesize vitamin A de novo, but form it through oxidative cleavage of carotenoids.
The chemical reactions and pathways resulting in the formation of any of the vitamin A compounds, retinol, retinal (retinaldehyde) and retinoic acid. Animals cannot synthesize vitamin A de novo, but form it through oxidative cleavage of carotenoids.
