For treatment of anemia and lethargy?

After having the second child, who is a month old and having a 3 year old, she suffers from anemia and lethargy. What can be done to help improve energy levels? We know about the iron supplements, but were wondering if there was anything else that would help?
no its for the mother not the children
no its for the mother not the children

I would not be asking a question like this for my 3 year old online. It is better to get a doctors opinion that can test your child and see exactly what the child need. There can be so many things. Sometimes a simple chewable multi-vitamin may work, but I would rather get answers that are 100%.