Nature Cure

Part-III: NATURE CURE EXPERIMENTS
Chapter-8: Necessity of Milk

Whilst I was engaged on the recruiting campaign in Kheda, an error in diet laid me low, and I was at death's door. I tried in vain to rebuild a shattered constitution without milk. I sought the help of the doctors, vaidyas and scientists whom I knew, to recommend a substitute for milk. Some suggested mung water, some mowhra oil, some almond-milk. I wore out my body in experimenting on these, but nothing could help me to leave the sickbed.
I might not take cow's or buffalo's milk, as I was bound by a vow. The vow of course meant the giving up of all milks, but as I had mother cow's and mother buffalo's only in mind when I took the vow, and as I wanted to live, I somehow beguiled myself into emphasizing the letter of the vow and decided to take goat's milk. I was fully conscious, when I started taking mother goat's milk, that the spirit of my vow was destroyed.
I would therefore urge those who, on the strength of the theory propounded by me, may have given up milk, not to persist in the experiment, unless they find it beneficial in every way, or unless they are advised by experienced physicians, Up to now my experience here has shown me that for those with a weak digestion and for those who are confined to bed there is no light and nourishing diet equal to that of milk.

Autobiography, pp. 333 & 334