I recently switched my dogs to a raw diet & they throw up bile due to low blood sugar if meal time is late, do you have any suggestions?

About two weeks ago, I made the switch over to the raw diet for my 3 dogs. The two older dogs I switched cold turkey but the young Malinois, I am switching gradually. I am giving them raw veggies & fruits, ground meat, fresh chicken with bones, some yogurt, some cottage cheese, occasional egg. Plus I bought the Honest Kitchen product you add meat to. They love me!!! I have never had this much excitement at meal time.

My question is with regards to possible low blood sugar. My two older dogs have had this problem all of their lives. They have always been fed twice a day, and if I am running late, they may have an occasional episode of vomiting bile which is quickly relieved by giving them something to eat and they are fine. Since making the switch to raw I have had this happen more often. I work all day so I am not there to add a snack and I feel like the amount of food they are getting should hold them. Do you have any suggestions?