should be a balanced one comprising of carbs, protein,fat, vitamins,minerals. There should be a good amount of water
intake also. Apart from this regular exercise of half an hour to one hour should be included and in morning do breathing practices (Pranayam).
Besides this try to find out reason of your low HB level it can be due to iron deficiency or can be of some other kind too. So better know the exact cause and later switch on to medication and dietary modifications.