Oops, it doesn't look like 'lose bodyfat day' is a national day..

Other days

pick me

Pick Me Day
slime

Slime Day
lost sock memorial

Lost Sock Memorial Day
camera

Camera Day
youth

Youth Day
artists

Artists Day
lumpy rug

Lumpy Rug Day
bonang

Bonang Day
ruby

Ruby Day
tell a fairytale

Tell A Fairytale Day