The original program was targetted at supporting the health of mothers in
the prenatal period. The milk coupons (funded by the former Edmonton
Board of Health) were an incentive given by community agencies with whom
these (mostly young, single pregnant) women already had contact. The milk
coupons brought them into the agency and were part of a "care program" by
which the agencies helped the expectant mother to plan for adequate
housing, source of income, clothing, etc. in order to be in a stable
position when the baby was born.

Initially, the program couldn't support the mother after birth with milk
coupons, though program organizers  recognized that the lack of
transition was brutal.  At that time,though, it was radical to actually
pay money for milk coupons - it was kind of like giving money directly to
the expectant mothers. So the program, as it stood, was a major paradigm
shift at the time.

The affiliated community agencies could and did continue to offer other
support. It took many years of data collection, debate, discussion and
planning for the program to be extended postnatally. And every prenatal
program across Alberta supports differently.

I suggest contacting Health Canada for information about what is done in
Health for Two and other similar projects under the Canadian Prenatal
Nutrition Project.