Selepas Pendudukan Jepun dan kembalinya pentadbiran British, kadar kematian bayi menurun secara mendadak. Faktor-faktornya ialah peningkatan mutu kesihatan awam dan sanitasi, pengawalan wabak malaria, penambahan inokulasi bayi, pengawasan bidan-bidan (ordinan 1954), penjagaan perubatan dan khidmat nasihat oleh klinik kesihatan ibu dan anak: “After World War II: Infant mortality rate dropped radically. Factors: improvements in public health & sanitation, malaria control, increased inoculation of infants, supervision of midwives (ordinance 1954), medical care & advice by maternal and child health clinics.”

(Sumber: Lenore Manderson, International Journal of Health Services, Vol. 12, No. 4 (1982), pp. 597-616 (20 pages): |"BOTTLE FEEDING AND IDEOLOGY IN COLONIAL MALAYA: THE PRODUCTION OF CHANGE").

Pusat Kebajikan Bayi di Kuala Lumpur, 1954: “5th October 1954, Registration of babies at Babies Welfare Centre during the Activity at Medical Research Institute and Outside Division Building at Kuala Lumpur.” (Jabatan Penerangan Malaysia (JAPEN), 1954 @ UNICEF, 2024: |"UNICEF Malaysia: 70 years of prioritizing children").

- 1940-03-28 - end of 1941: Nurse Elizabeth @ 'Problems of Babies and Young Children': Letters from readers show diverse infant feeding practices: BF exclusive, BF+bottle, bottle-only (maternal ill-health). Disagreed on intervals, every baby needs to be considered individually (ST 1941-06-26, supplement, p.ii). BF strongly encouraged. Complementary & supplements discouraged, only necessary with dried / evaporated, not sweetened condensed milk: '[breast milk contains] plenty of all the vitamnis which baby requires, and he would be able to assimilate them far more easily if he receives them through your milk than he would if he were to take the preparation itself (ST 1941-06-26, supplement p.ii). Advised to re-establish lactation, with guides to establish & sustain lactation. Column resumed 1947: 'Mothers will realize, more than ever, the enormous importance of breast feeding their babies … if the mother's own diet contains all the essentials she need have no fear, for her baby will thrive and develop perfectly' (ST 1947-06-17, p.5).

Correlation of bottle feeding and jangkitan cirit birit pada bayinfantile gastroenteritis established by Levi and Alexander. Only since this time, doctors and governments became concerned with dangers of bottle feeding.

Supply of manufactured goods disrupted (Japanese occupation) - women had to breastfeed. British Medical Officers associated with improved infant mortality rate.

Reinstatement of British administration: Infant welfare & maternal health care resumed with medical & public health services. Limited cow's milk supply through government agencies, so majority infants breastfed. However, according to an official correspondence immediately after reinstatement of British Administration: Chief Nutrition Adviser, 1948-11 (10, folio 8): “70,000-80,000 tons of dried milk would be required … for the expectant and nursing mothers, babies and children. Unfortunately the Nutrition Council, because of the cost of even this quantity of milk, feels this amount will have to be reduced still further. THe least additional quantity we can ask for is 10,000 tons … The council recommends that this extra milk should be powdered, skimmed milk since this is probably more easily and cheaply obtained… We believe the importation of extra milk is necessary to prevent disease and unrest in the country.” Regular supply resumed: Advertising returned.

Advertising start for the masses.

Daily ads in Utusan Melayu: Cow and Gate, Lactogen, Klim, Every Day, Milkmaid. Also tonics, worm powders, chocolates, supplements, cough mixtures. In English press: Carnation Milk, Dutch Baby, Ostermilk (Glaxo) infant milks, compete with Cow and Gate & Nestle (Lactogen, Nestogen (low-fat infant food), Eledon buttermilk (premature underdeveloped babies), Gluco-B supplement, Nespray (older babies & general use), Nestum (cereal for weaning), Babex dehydrated fruit & vege (for weaning) ( e.g. ST 1959-07-07, p.4). New milk brands: Blue Cross, Baby Stork. New weaning fods: Farex, Barlova, Lacova. Pictures of Asian babies and testimonies from Asian mothers used. Ostermilk: 'especially suitable for babies in Malaysia' (ST 1957-07-16, p.7). Morinaga: 'good for infants, because it is just like mothers' own milk, and is especially suitable for Asian babies' (Berita Harian, 1963-09-16, p.15).