Oops, it doesn't look like 'diet rite day' is a national day..

Other days

unicorn

Unicorn Day
singles

Singles Day
prescription drug take back

Prescription Drug Take Back Day
bow tie

Bow Tie Day
lash

Lash Day
embarrass your best friend

Embarrass Your Best Friend Day
hiv awareness

Hiv Awareness Day
kiss a ginger

Kiss A Ginger Day
prosecco

Prosecco Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day