Pre-cut fruits & loss of nutrients
Convenience is a thing of necessity these days. However, there are instances where convenience may actually work against our efforts to stay healthy. Within 3 days of being sliced, pre-cut fruits like pineapples lose 25% of their carotenoids - healthy compounds that fight both cancer and heart disease.
There are no obvious signs of this as, even after 9 days, there was not any difference in color or firmness between the whole pineapple and the pre-cut fruit. Then again, you could always eat 25% more of the pre-cut pineapple to make up for the amount of lost carotenoids.