Clean eating while on periods

So I last week I started to make a lifestyle change and need to make need to lose some weight I need to know what what can I I eat while I’m on my period I’m cutting out all sugar and junk food and soda drinking water and eating all clean foods! But what can I eat while I’m on my period. I have a fat burner shake that’s chocolate and it tastes like chocolate milk it’s so good. I’m planning on doing keto but never didn’t that plan before but would like to know more about it?