Anandakanda 1.9.81

1.9.81

palaṃ pibecca gokṣīraṃ caturguñjāparāvadhiḥ /
māsaṣoḍaśayogena gṛdhradṛṣṭir mahābalaḥ //

And one should drink one pala of cow's milk; the highest limit is four guñjās. / By using this for sixteen months, one acquires vulture-like eyesight and great strength.