Ah, an even better reference, from 1906, which also mentions teeth.

  Lieut.-Colonel Allan Cunningham desired to contrast the
  highly scientific process of grinding in use at the present
  day in all civilised counties with the unscientific process
  of grinding on a very large scale amongst the huge
  population of North-West India, which was essentially a
  wheat-eating population. The wheat was ground there in hand
  stone mills; the grinding was coarse, and separation of the
  bran very imperfect, there being a good deal of bran in the
  so-called flour. The bread was unleavened bread, whereas the
  bread eaten in this country was leavened bread, which made
  in immense difference in its effect on the constitution. The
  native flour was simply kneaded with water, and quickly
  heated over a griddle. With the addition of a little milk,
  butter, and salt, that was the staple food of the
  population.  The effect of the diet was that the population
  were inferior on the whole in physique to Europeans, but it
  must remembered that they did not have a varied diet. The
  people had extremely beautiful teeth which they carefully
  cleaned. One very curious effect, which was always ascribed
  to the eating of the native ground what, was that the
  natives were extraordinarily subject to stone, even little
  children frequently having bigs stones in the bladder.

  Journal of the Society of Arts, December 21, 1906.

  https://books.google.com/books?id=DfpFAQAAMAAJ&pg=PA127