At what age should I give my baby solid foods, is four months old?

we were told by wic and everything not to until 6 months with our first but I am thinking it was around 4 months that we went ahead and started her on baby foods.. she was always starving and wanting to nurse non stop if not.. the baby food helped with her getting full more and we then continued nursing as well until she was about 14 months

An OLD recommendation was "somewhere between 4-6 months" but now everyone from the American Academy of Pediatrics to the World Health Organization recommends waiting til age 6 months (no earlier) to maximize benefits of breastmilk/formula and to avoid problems like allergies and obesity. Obviously not all kids who eat solids early will have those problems (it's a strong correlation, not causation) but the AAP and WHO don't make these recommendations for fun-- they use research based on the scientific method to give the best possible information to parents, and care to babies.

Always listen to your baby. Everyone is going to give you their recommendations from feeding to what toys your baby should play with but if your paying attention your baby will tell you exactly what they need. My first daughter was able to start eating pureed foods (baby food) at 3 months and my second daughter started at 4 months. Both were able to hold their necks up and were ALWAYS hungry so it worked out well.