We had spontaneous expressive speech (including calling mom and daddy) shortly after introducing a B-complex vitamin (around 2.25yrs). Before that it was all labelling only - our son could identify who is mommy and daddy in pictures or person but never called us that. Removing milk was also huge for us at that age.

Have you thought about using visual charts? Such take a pic of your self and a pic of her and then a pic of each other. Each time point to your pic and say mommy and then point to her pic and say her name etc.. Just an idea..

Thanks facetious. It was very helpful information.

Ramp up dose gradually to one cap. A small subset of kids cannot tolerate higher dose b vitamins. Our son had no issues with even higher doses.

This is one that we use

http://m.iherb.com/Thorne-Research-B-Complex-12...

It shows out of stock but they refill stock quickly. We used to open up capsule and put half in apple juice twice a day. It mixes well and tastes okay (unlike the liquid ones). After a few months we reduce dosage to just half a capsule.