The causes for low Hb needs to be evaluated. Is there any history of illness or dieting? Improper eating habits and diet. If female is there any history of severe or heavy bleeding during menses?
In the meanwhile you may
1) Take a iron rich diet - Include Jaggery, black dates, kishmish in your diet
2) Leafy vegetables atleast 2 times/wk
3) 1/2 tsp of Halim (Garden cress) seeds, soaked in water in the morning. This helps in improving the iron store in the body.
4) A balanced diet including fresh fruits and vegetables is important.
5) You can take homeopathic
medicine FERRUM PHOS 6X 2 PILLS 2 TIMES/DAY
Repeat the blood work after 3 months(and not within 3 months) as thats the best time to notice any difference (Life cycle of the Red blood cell is 120 days )