Very good question. I asked the same to my pediatrcian. His reply was that there is no scientific connection with cold food and getting a cold. The foods you mentioned are not likely to cause a common cold. But my personal belief is to provide soothing foods while baby has such a cold. I hope im not confusing you. Long story short  - give in limitation abd room temperature

i think this is true because all these fruits. curds will cool down the body heat. so better to avoid while baby is having running nose