The Compendium of Caraka 6.3.140

6.3.140

&kṣayānilabhayakrodhakāmaśokaśramodbhavāt/
laṅghanena kṣayaṃ nīte doṣe saṃdhukṣite 'anale//
&`'
vijvaratvaṃ laghutvaṃ ca &kṣuccaivāsyopajāyate/
prāṇāvirodhinā cainaṃ laṅghanenopapādayet//
&`lāghavaṃ ca śarīrasya kṣuccaivāsyopajāyate' iti pā-.
balādhiṣṭhānamārogyaṃ yadartho 'ayaṃ kriyākramaḥ/
laṅghanaṃ svedanaṃ kālo yavāgvastiktako rasaḥ//

arising from wasting, wind, fear, anger, passion, grief, or exertion.
When the humor is reduced by fasting, the fire is kindled,
freedom from fever, lightness, and appetite arise in him;
and one should manage him with fasting that does not oppose his vital breath.
Health is rooted in strength, for the sake of which this sequence of treatment [is undertaken]:
fasting, fomentation, time, thin gruel, and bitter taste,