EFF
Also called exclusively formula fed, exclusive formula feeding
EFF stands for exclusively formula fed or exclusive formula feeding, meaning a baby has formula and no breast milk. Parents use the same letters for the baby, who is EFF, and for the way they feed, as in switching to EFF.
How it's said
Who says it
Where it came from
EFF is built the same way as EBF, exclusive breastfeeding, and parents were writing the two side by side online by 2010.
Researchers use the letters too. A 2012 South African study of infant feeding defined exclusive formula feeding (EFF) as giving a baby only commercial infant formula for the first six months.