The Compendium of Caraka 6.13.95

6.13.95

dravebhyaścodakādibhyo niyacchedanupūrvaśaḥ/
sarvamevodaraṃ prāyo doṣasaṅghātajaṃ matam//

And one should restrict liquid substances such as water and the like gradually. / Almost every udara is considered to arise from an aggregation of doṣas;