By regulating your diet and avoiding certain bad habits, you can preserve health. Moderate food, and food of the sattvika type, will promote mental poise and also physical happiness. Mitahara (moderation in food) is always to be welcomed. Many people consume more than the necessary quantity of rich food and such have to practise moderation. So too, if you do not smoke, you escape a number of illnesses that follow that Rajasika (passionate) practice. Any intoxicant or stimulant, because it disturbs nature s even trend, is harmful. Moderation in food, moderation in talk, and in desires and pursuits; contentment with what little can be got by honest labour, eagerness to serve others and to impart joy to all---these are the most powerful of all the tonics and health-preserves known to the science of health, the SanatanaAyurveda, the Veda of the full life. (SSS Vol.1, pp. 144-145)

You take pretty good care of the body. I do not condemn it; I only want that you should take equally good care of the needs of the spirit also. Take a dose of Dhyanam (meditation) and Japam (silent repetition of holy Names) as the morning breakfast; Puja and Archana (ritual worship) as Lunch at noon; some Satsangha (holy company) or Sat-chintana (thinking holy thoughts) or Sat-grantha parayana (reading of holy books) or Nama likhita(writing of holy Names) as afternoon tea and snacks; an hour of bhajan (devotional singing) as Dinner; and a small ten-minute manana (reflection) as the cup of milk before going to bed. That dietary is enough to keep your inner being happy and healthy. That is My advice to you today. (SSS Vol.4, p. 58)

You must lead your lives, according to My words, without the slightest modification. First have faith, then the experience is granted. Even in the case of the previous Avatars, that is the order of events, is it not? You worship with faith and you experience Grace. Faith results in Grace, without your being aware of it. You must take in the medicine I give and also follow the diet I prescribe and avoid the things I prohibit. (SSS Vol.2, p. 63)

For many illnesses, filling the mind with the thought of God is the curative drug. For the rest, regimented diet, sleep, pastimes and activities are effective cures. The Shastras(scriptures) taught this regimen and the proper mental attitudes and their teachings are invaluable at the present time. (SSS Vol.5, p. 122)

The patient chooses the diet and the regimen which are congenial to him; he bids adieu to the directions given by the doctor, for, they restrict and regulate. The patient has his own categories of judgement, his own doubts and hesitations, created by his own fears and foolishness. He does not accept the conclusions of those who know, for, he is afflicted with a perverted egoism. (SSS Vol.5, p. 134)