The effect of the degree of polishing of rice on nitrogen and mineral metabolism in human subjects.

Negative calcium balances were ruorded in human subjects when brown
(unpolished) rice or rice polished to remove 2.9% of the brown rice was fed
as the cereal portion in a poor vegetarian diet. Under similar conditions, rice
polished to remove 4.1 or 6.3% of the brown rice produced slight positive
calcium balances. In spite of its higher protein and phosphorus content, the
brown rice did not produce higher nitrogen or phosphorus balances than
The polished rice samples,
Rice polished 10 remove 4,1% of the brown rice represented a via media
stage of polishing with 1.7 'Y per g. of thiamine and could be recommended
for consumption by rice eaters. The exclusive consuillftion of brown rice in
diets containing marginal or submarginal amounts 0 calcium is not (0 be
recommended as it may produce negative calcium balances.