>Why is milk white?  Can't be the fat;  skim milk is white.  Can't be the
>sugar; sugar water is clear. What makes it white?

I thought it was a combination of the fat globules and casein. Emulsions in
general are white and 'milky' and contain suspended, insoluble matter, like
fat globules in milk. I understood that skim cow's milk looks whiter than
skim human milk because of the higher casein content.

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Joy Anderson B.Sc. Dip.Ed. Grad.Dip.Med.Tech. IBCLC
Nursing Mothers' Association of Australia Breastfeeding Counsellor
Perth, Western Australia.   mailto:[log in to unmask]
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