Googling "eating apple is good for health" gets more than 900 hits.
Googling "eating apples is good for health" gets more than 600 hits.
The results seem to convey an implication that "eating apple" and "eating apples" pretty much mean the same thing.
However, Googling "eating banana is good for health" gets more than 1000 hits,
while Googling "eating bananas is good for health" gets about 4 hits.
There seems to be some difference. If it is, what is that?