Table 1.

Search terms for Ovid MEDLINE

1	[final searches]
2	exp Infant Nutritional Physiological Phenomena/
3	Milk, Human/
4	Infant Formula/ or milk substitutes/ or infant food/
5	(infant feeding* or breastfe* or breast-fe* or bottle fe* or bottlefe* or infant formula* or breastmilk or breast milk or wean or weaned or weaning).mp.
6	((feeding or fed or food or foods) adj2 (solid or solids or formula or baby or babies or infant or infants or infancy)).mp.
7	or/2–6
8	South Africa/
9	south africa*.mp,jw.
10	(Port Elizabeth or Bloemfontein or Johannesburg or Durban or Polokwane or Mbombela or Klerksdorp or Kimberley or Cape Town).mp.
11	(Eastern Cape or Free State or Gauteng or KwaZulu-Natal or Limpopo or Mpumalanga or Northern Cape or Western Cape or North West province).mp.
12	or/8–11
13	7 and 12
14	limit 13 to yr = “2006–2020”
15	14 not (animals not humans).sh.

Ovid MEDLINE(R) ALL, searched on April 16, 2020, and updated on June 1, 2020