Clorophyl drops can bring your hematocrit up and are much much more gentle on the digestive system. I was diagnosed with pregnancy anemia for a short period due to my lack of red meat intake and wrong prenatal vitams at the time - my midwife told me to get clorophyll drops and in a month my hematocrit was excellent. It is very safe, and does the same as the dark green veggies... the molecular structure of clorophyl is almost identical to iron, but iron is very hard to digest. Look at a local health food store and you should be able to find it.
Remember also that
On a side note - formula doesn't necessarily contain all the needed properties for the first year, and has a lot of ingredients that are too much for a human baby (since most is made from cow's milk). Also, calcium inhibits the absorption of iron as well. However, the iron in breast milk is digested much more easily than formula, which is why there is so much iron in formula compared to breastmilk - and another reason why formula-fed infants would have a harder time getting the iron they need. Breastmilk will contain more nutrients that a baby would need for the first year. Though formula/breastmilk is supposed to be the main source of nutrition for the first year, it is not the only nutrition.
Though I would not recommend a vegitarian diet - if that is your wish, I think chlorophyl would be the perfect choice for you. I like to stay natural when I can, and was very pleased with the results I got from the chlorophyl drops. You would be able to mix it with some water/juice/formula too help the taste. You can get a peppermint flavored one, but, it really isn't that good - so if your little one is a picky eater, it may be best to mix it with something.
If you want more info - just let me know. Also, you can look here: http://www.drjaygordon.com/development/alternative/colds.asp
for more information on figuring out infant dosages on adult medications (which would also go for the chlorophyl or other herbal remedies).