Scientists have tested the nutritional ingredients in 43 types of fruit and vegetable and they compared the results with the data complied in 1950.

The results were much disappointing: both vegetables and fruits were found lower in minerals than those harvested in 1950. The fruits and vegetables were found lower in 6 out of 13 nutritional minerals - proteins, calcium, iron, riboflavin and vitamin C.

The scientists explain some of the potential factors in this including use for synthetic fertilizer and the desire to achieve higher yield during a shorter timetable, unfortunately the poor plants do not have time to absorb the beneficial minerals.