Saul was without sight for three days after he beheld the Lord in a vision (see Acts 9). During this time he did not eat or drink. After Ananias came and restored his sight to him, Saul "received meat" and was strengthened.
Maybe the mention of people eating after such spiritual experiences is just to remind us that we need to look after the physical needs as well as the spiritual. We cannot always be feeding one and starving the other. We have to balance them both.