What to eat if you need more blood

Today a friend of mine asked randomly on messenger that:

what to eat if you need more blood?

So the instant reply was:

drink, blood

Na! anyway . . . jokes apart, so what to eat in case you need more blood (inside body only).

How to increase red blood cells count

Well you need two types of things for iron / blood replenishment :

Apples, apple juice or as a whole

Green leafy vegetables, e.g. spinach.

Ferrous sulphate tablets

Folic acid supplements

Treat the underlying cause of iron deficiency or cause of blood loss if any.