88 LETTERS TO THE EDITOR
their blood glucose rises. In homogeneous Cornell University
populations it may even be possible to recom- Ithaca, New York 14853
mend amounts of milk which are likely to be
tolerated by the vast majority of any group.References
Certainly if upheld by further study this index1. LISKER, R., G. L6PEZ-HABIB, M. OALTABUIT,
may allow clinicians to predict with some I. ROSTENBERG AND P. ARROYO. Lactase
confidence an upper limit of milk tolerance in a deficiency in a rural area of Mexico. Am. Clin. J.
healthy individual, especially if each person’s Nutr. 27: 756, 1974.
2. STEPHENSON, L. S., AND M. C. LATHAM.
past experiences with ingestion of various
Lactose intolerance and milk consumption: the
quantities of milk is taken into account. It relation of tolerance to symptoms. Am. J. Clin.
seems likely too that symptoms are further Nutr. 27: 296, 1974.
reduced if milk is consumed as part of a meal.3. STOOPLER, M., W. FRAYER AND M. H. AL-
DERMAN. Prevalence and persistence of lactose
As Lisker and co-workers state for Mexico,
malabsorption among young Jamaican children.
there is probably nothing to contraindicate the Am. J. Clin. Nutr. 27: 728, 1974.
moderate use of milk in nutritionally useful JONES,
4. D. V., AND M. C. LATHAM. Lactose
amounts in populations where most persons intolerance in young children and their parents.
Am. J. Clin. Nutr. 27: 547, 1974.
have primary low lactase activity levels.
5. BAYLESS, 1. M., B. ROTHFELD, C. MASSA, M.
Lani S. Stephenson, B.S., M.N.S. WISE AND M. S.BEDINE. Intolerance to recom-
Downloaded from www.ajcn.org by on May 31, 2010
Michael . Latham, O.B.E., M.B., mended amounts of milk and lactose by lactose-
M.P.H., D. T.M.-H. intolerant adults. Am. J. Clin. Nutr. 26: 465, 1973.
6. PIETERS, J. J. L., AND R. VAN RENS. Lactose
malabsorption and milk tolerance in Kenya school-
Division of Nutritional Sciences age children. Trop. Geograph. Med. 25: 365, 1973.
Breast feeding in Mid-Western State
Dear Sir: mothers in Nigeria, the quantity of milk
produced could also be very much reduced,
In an attempt to relate the quality of breast
resulting in a worse situation.
milk to failure in breast feeding, I have recently
Relatively little attention has been paid to
analyzed breast milk of 105 apparently healthy
the effect of lactation performance of mothers
Mid-Western nursing mothers in Benin. It was
on the breast-fed infant. Knowledge of the
found that mean protein values tended to
dietary habits of lactating women, the amount
decrease until 8 months at which point they
of milk produced during different stages of
stabilized and lactose values did not change
lactation and the infant feeding practices will
significantly during the period. These results
throw more light on the nutrition of infants in
agreed closely with those of Jelliffe (1) and
0. Ogbeide, M.Sc.
ln addition, the mean protein value of the
analyzed samples was shown to be significantly Research Fellow
higher during 1-6 months than during 7-22 Department of Community Health
months of lactation, and50% of the latter University of Benin
(during 7-22 months of lactation) had protein Benin City, Nigeria
content of 0.772%. With the high proportion of
the women constantly producing such poor
protein milk, it could be concluded that protein 1. JELLIFFE, D. B. The protein content of the breast
milk of African women. Brit. Med. J. 22: 1131,
probably becomes a limiting nutrient for a large
share of the infants by the third or fourth BASSIR,
2. 0. Breast milk in Nigeria. J. Trop. Med.
month of life. Due to the poor nutrition of Hyg. 59: 138, 1956.