Problems with spelling "breastfed"

[Rachel Adams]

Hello.

I have a problem with the spelling of these words. "Breastfed", and "a breastfed baby".
For example,
1. "She wants her children to be breastfed."
2. "He is a breastfed baby."
3. "Some women refuse to breastfeed their children."

When I googled it I found both "breastfed" and "breast-fed."

 

[Rover_KE]

Most compound adjectives start out hyphenated and gradually lose the hyphen over time and with frequent use.

Stay with breastfed, and be right up-to-date. [link]