On the contrary, fruits and vegetables can provide all kinds of sugar and starch, protein, minerals, vitamins and cellulose. Long-term consumption usually has no effect on individuals, but will promote body metabolism. However, it is suggested to supplement meat, eggs, fish, poultry and dairy products appropriately.
In addition, most staple foods are produced by a large number of chemical fertilizers and pesticides, among which the contents of protein and vitamins are relatively low (which is also an important factor of obesity in China at present). So I suggest increasing fresh fruits and vegetables and reducing staple food appropriately.