I stand corrected.
These are the exact words from Clarke.
Wild pigeons and other birds which eat the berries acquire a highly red colour and lose their fat. This last observation has led to the use of a tincture of Phyt. berries as an anti-fat, and many successful results have been reported. This observation may be taken as the key to one of the great spheres of the action of this remedy─the absorption of tissues, especially new growths.
Murthy